Category Archives: ONA

Mangrove forests protect coastlines. ‘Synthetic mangroves’ could do the same for cities.

Humans have lots of reasons to thank mangroves. These swampy, stilt-rooted trees store massive amounts of carbon on tropical shorelines, support nurseries for a wide variety of commercially important fish species, and protect coastal areas from storm damage. Besides these benefits for people, mangroves are unique among trees because they thrive in shallow seawater that’s too salty for most living beings to grow in. To better understand exactly how mangroves can grow in the ocean yet pump freshwater up to their leaves, engineers constructed what they’re dubbing “synthetic mangroves”, pressure-driven devices that can draw freshwater out of the saltiest seas — and have the potential to help manage stormwater in cities.

The synthetic mangrove they built resembles a large French press more than a tree, but it has some version of the most important parts of a mangrove: salt-excluding “roots,” a strong “stem”, and thirsty “leaves.” In a real mangrove, the pressure difference between the leaves and the rest of the tree acts like suction on a straw, pulling water up from the roots and through the stem. Natural membranes in the roots filter out the salt. For the synthetic mangrove, the big challenge was getting the fresh water pulled up the “stem” to the leaves without creating bubbles. The team landed on a silica-based layer for the stem and hydrogel for the leaves, and they found that their synthetic mangrove performed just like a real one, even with super-salty water.

Although the design helps engineers better understand how mangroves suck up water while leaving the salt behind, we shouldn’t expect to see fake mangrove forests sprouting up in place of desalination plants — treatment centers that turn saltwater into freshwater — anytime soon. The synthetic mangrove’s elegant pressure-driven desalination process works at small scales, but a large mangrove-inspired desalination plant would foot a hefty energy bill. Instead, the engineers who created the imitation mangrove have another idea for using their wannabe trees: incorporating them into the design of cities to make buildings more resilient in the face of storm surges.

In such a city, “the buildings themselves would soak up excess groundwater and evaporate the water from their walls and roofs,” they write in a recent Science Advances article explaining their invention. Like a mangrove, these buildings would rely on pressure differences to suck the water up, making them self-reliant buffers against storms flooding city streets. At least 30 so-called sponge cities using related technologies already exist in China, and the design may gain traction as storms and storm surges increase in intensity with climate change.

As people continue clearing real, living mangrove forests in alarming numbers, it’s worth remembering that synthetic mangroves don’t replicate all of real mangroves’ benefits. . Mangrove-inspired city design is promising for protecting people from the most extreme effects of storm surges and flooding, but in many places, the best way to do that will be leaving old-fashioned, living mangrove forests intact to do what they do best.

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Mangrove forests protect coastlines. ‘Synthetic mangroves’ could do the same for cities.

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Trump blasts wind turbine emissions, says zilch about fossil fuels

It’s no secret that President Trump hates wind turbines. He’s had it out for them since at least 2012, when he tweeted that they’re an “environmental & aesthetic disaster,” and blamed them for murdering bald eagles. The enmity reportedly stems from an offshore wind farm that Trump feared would mar views from one of his golf courses in Scotland.

At a rally in Colorado Springs, Colorado, on Thursday, Trump made his displeasure known again, saying that the wind turbines he saw recently on a trip to Palm Springs were “closed” and “rotting.” “They look like hell,” he said.

He didn’t stop there. “When they’re making them, more stuff goes up into the air and up into the ozone, the atmosphere,” Trump said. “And they don’t say this, but after a period of time, they get tired, they get old, they get rusty and a lot of guys say hey, their useful life is gone, let’s get the hell out of here.”

The president isn’t entirely wrong about that last bit. As a recent report from Bloomberg Green points out, tens of thousands of aging wind turbine blades — which can stretch longer than the wing of a Boeing 747 — are ending up in landfills. Over the next four years, 32,000 blades will go to the landfill in the United States alone. Recycling the blades, which are built to outlast hurricanes and tornadoes, is nigh impossible.

But the environmental impact of wind turbines is nothing compared to that of oil, gas, and coal — industries that Trump has tried to prop up with every executive lever available to him. If Trump actually cared about the stuff that “goes up into the air,” he’d rail against fossil fuels, not renewables. The carbon footprint of coal is nearly 90 times greater than that of wind energy, according to the Department of Energy’s National Renewable Energy Laboratory, an agency in the executive branch that Trump is the head of. The footprint of natural gas is more than 40 times greater.

Trump’s 2012 claim that wind turbines kill birds is also a half-truth: the Audubon Society estimates that wind turbines kill somewhere between 140,000 and 328,000 birds every year in North America. But the oil and gas industry kills as many as one million birds a year, says the Bureau of Land Management. And coal, the industry Trump has vowed to save, kills nearly 8 million per year.

Come to think of it, “a lot of guys say hey, their useful life is gone, let’s get the hell out of here” would be a much better motto for fossil fuels than for wind turbines.

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Trump blasts wind turbine emissions, says zilch about fossil fuels

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This tiny but mighty California bureau is taking on polluters

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This tiny but mighty California bureau is taking on polluters

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Bloomberg bombed the debate, but his climate record is pretty good

In between absorbing blows from his fellow presidential contenders at the ninth Democratic debate in Nevada on Wednesday, former New York City Mayor Michael Bloomberg tried to present his vision for what his climate agenda might look like if he were elected the next president of the United States. He didn’t quite succeed.

That’s a testament to how bad his debate performance was — because of all the candidates on stage, the billionaire latecomer probably has the strongest climate bona fides. He’s donated millions to shutter coal plants across the United States with his “Beyond Coal” partnership with the Sierra Club, something he briefly touted Wednesday night. In the absence of federal leadership on climate, he’s worked with cities and states to negotiate emissions reductions goals as part of America’s Pledge, an initiative he helped launch.

Similarly to his answers to questions about his personal wealth and treatment of women, Bloomberg basically bungled his opportunity to respond persuasively to prompts about rising temperatures and international cooperation. Aligning himself with moderate candidates like Amy Klobuchar, Bloomberg came out in support of natural gas as a “transition fuel.” Natural gas production in the U.S. has skyrocketed in recent years due to the fracking boom, but recent research shows the fracking industry is largely responsible for a prolonged spike in methane emissions, a greenhouse gas far more powerful than carbon in the short term. (On Thursday, a spokesperson clarified to Grist that Bloomberg believes that “while gas played a useful role in the early stages of transitioning away from coal, its role as a transition fuel has ended now that renewable energy is cheaper and gas is now a bigger source of carbon pollution than coal.”)

Also on Wednesday night, instead of taking a hard line on China — currently the world’s leading emitter of greenhouse gas — Bloomberg pivoted to India, arguing that the developing country was an ”even bigger problem.” While India’s emissions are on the rise, China still emits four times as much carbon from fossil fuel use.

Pundits’ reviews of Bloomberg’s performance were overwhelmingly negative. For the time being though, it looks like Bloomberg’s stash of cash all but ensures his continued presence in the race. And if he can figure out how to communicate more clearly, the next debate is a chance to establish himself as a serious climate candidate.

So how might he do that? He could start by talking about his record. Bloomberg championed climate policies when few politicians were thinking about rising temperatures. After Superstorm Sandy ravaged parts of New York City in 2012, then-Mayor Bloomberg launched a sustainability agenda that was considered to be the most ambitious urban climate mitigation plan in the world.

He led a campaign to protect the city’s drinking water and waged a city-wide effort to revamp its garbage collection system. He created a sustainability task force and, later, a sustainability office that was tasked with tracking the city’s emissions. He attempted to introduce congestion pricing to limit car use in parts of the city. (Though that idea ultimately failed, it’s been reintroduced with more success recently.) Many of his efforts to green the Big Apple went the way of his failed ban on large sodas, but they laid groundwork for the upwelling of urban sustainability efforts happening now across the nation.

“Now you hear a lot about climate action at the national level,” Antha Williams, senior adviser for climate and environment for the Bloomberg campaign, told Grist. “But Mike was really the person who got a lot of that local work started.” That record, she said, will resonate with voters, many of whom say they consider climate change a top priority.

He can also go the Elizabeth Warren route, and get wonky. His specialty is the private sector. He could make a case for why he’s the best candidate to address corporate climate accountability. “One of the things he’s done over the past several years is lead a task force on climate-related financial disclosures,” Williams said, referencing a transparency initiative established in 2015 and chaired by Bloomberg. “That has put together a set of standards that should be reported for companies to actually show their exposure on climate change.”

Or he could set himself apart from his competitors by plugging the work he’s done on the international stage — an area where he is rivaled by only Joe Biden. The United Nations tapped him to be a climate envoy in 2014; and he also served as the head of C40, an international organization of cities committed to climate action. “When Trump walked away from the Paris climate agreement, Mike was there,” Williams said. “He was there to do the reporting that the U.S. shirked.”

Bloomberg’s climate platform checks many of the same boxes as his opponents’ plans: rejoin the Paris Agreement, halve the United States carbon emissions by 2030, invest in frontline communities to combat environmental injustice, the list goes on. As Pete Buttigieg said of those on the debate stage Wednesday night, “I’ve got a plan to get us carbon neutral by 2050. And I think everybody up here has a plan that more or less does the same. So the real question is, how are we going to actually get it done?”

Bloomberg is one of just a few candidates with an actual record to point to in answering that question. But you wouldn’t have known it from his time on stage in Las Vegas.

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Bloomberg bombed the debate, but his climate record is pretty good

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Ahead of the caucuses, Nevadans say climate change is on their minds

After the disastrous Iowa caucuses and far smoother New Hampshire primary, all eyes now turn to Nevada, which will hold its Democratic primary caucuses on Saturday. On Wednesday night, presidential hopefuls took to the debate stage in Las Vegas to compete for Nevadans’ affections. In between viral verbal smackdowns, the candidates took a full 16 minutes to talk about climate policy.

It was a canny choice by the moderators, which included the very first climate journalist to helm a presidential debate, to spotlight climate. That’s because Democratic caucus-goers in Nevada — and Latino caucus-goers in particular — care deeply about climate policy, according to a recent poll.

The poll, released by the League of Conservation Voters (LCV) and the Nevada Conservation League, reveals that 86 percent of Nevada Democrats likely to attend the caucuses on Saturday believe that the climate crisis is either “a very important issue” or “the most important issue.” And climate change is the second most important issue to likely Democratic caucus-goers, after universal healthcare, when deciding which candidate to support.

For likely Latino caucus-goers in the state, climate change is a more important issue than health care or immigration. This makes sense because climate change is not a single issue, but one that affects every other issue — and its impacts are felt differently depending on race, income, gender, immigration status, and other factors.

“Latinx communities are hit first and hardest by climate,” Rudy Zamora, program director of Chispa Nevada — an organizing program under LCV — said in a statement. “So it’s not surprising to see that climate change is the most important issue for Nevada Latinx voters in deciding who to support for president.”

A majority of those who participated in the survey said they are much more likely to vote for a candidate with a climate plan that prioritizes communities most affected by pollution, including low-income communities of color. And 43 percent say they “strongly support” a Green New Deal.

These results line up with recent national polls showing that Democratic voters believe climate change is an important issue for presidential candidates to address this election.

But the issue has particularly hit home in Nevada, which has experienced dangerous heat waves in the last few years. Since 1970, Nevada has warmed 2.8 degrees F on average. Last August, the state broke a record for the most consecutive days with temperatures over 105 degrees F. Las Vegas is the fastest-warming city in the country. And the Colorado River has been dwindling due to an increasing loss of snow in the Nevada mountains, forcing Nevadans to cut down their water use.

Given all that, it’s no surprise that climate change will be on Nevadans’ minds when they head to the caucuses this weekend.

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Ahead of the caucuses, Nevadans say climate change is on their minds

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By law, New York has to protect communities from climate change. Cuomo’s budget ignores that.

Nearly 300 climate activists from across New York State gathered in the halls of the capitol building in Albany late last month during an environmental conservation hearing. They formally submitted testimonies to the committee, spoke with Assembly members, and rallied inside the building, occupying the lobby and one of the grand staircases. They were there to tell New York Governor Andrew Cuomo that they’d noticed he had some unfinished business with regard to the state’s climate policy.

The rally came after Cuomo released his 2021 budget proposal. Although it included a $33 billion, five-year plan to fight climate change, environmental groups were surprised to see that the budget didn’t mention anything about protecting vulnerable communities from the climate crisis — even though the state is required to do just that under the Empire State’s ambitious new climate law, Climate Leadership and Community Protection Act (CLCPA).

The CLCPA, which commits the state to net-zero emissions by 2050, was signed last July and officially went into effect on January 1, 2020. The final version of the bill was not exactly what advocates had hoped it would be. They envisioned it as the state’s version of the national Green New Deal: sweeping legislation that would curtail the state’s greenhouse gas emissions and transition to a greener economy while also addressing racial and economic issues. But last-minute changes made by Cuomo slashed the original bill’s social justice and labor provisions — making it look a lot less like the federal Green New Deal.

What the CLCPA does contain, however, are provisions to address climate impacts on disadvantaged communities. The law says that state agencies, authorities, and entities shall direct resources “in a manner designed to achieve a goal for disadvantaged communities to receive forty percent of the overall benefits of spending on clean energy and energy efficiency programs, projects, or investments” and “no less than thirty-five percent.” But Cuomo’s spending plan for fiscal year 2021 does not mention anything with regard to that provision.

In a letter to state representatives, New York Renews — a statewide coalition of nearly 200 advocacy groups — expressed their disappointment in Cuomo’s spending plan. “You passed a law designed to protect communities, but the governor’s budget does not include the funding necessary to do so,” the group wrote. “The governor’s status quo climate budget ignores disadvantaged communities as if the CLCPA was never signed into law.”

The $33 billion climate portion of Cuomo’s budget proposal includes plans to invest in resilient infrastructure, planting more trees, preserve fish and wildlife habitats, expand renewable energy, install electric-vehicle charge stations, ban single-use plastics, and permanently ban fracking in the state. But for New York Renews, these proposals don’t go far enough because they don’t address the unequal impacts of climate change and environmental contamination.

“Low-income communities and communities of color across New York State have consistently faced the worst impacts of pollution and climate change, yet the Governor’s budget does not meet the standard set by the CLCPA that at least 35 percent of climate and energy spending target frontline communities,” NY Renews coalition coordinator Stephan Edel told Grist in an email. “This is a grave oversight, but there’s still time to fix it.”

As part of the solution, NY Renews is pushing for the Climate and Community Investment Act, which would fine corporate polluters. The money generated by that fine would go to large-scale renewable energy projects, updates to the electric grid, environmental justice community projects, energy-efficient transit systems, helping low-income New Yorkers with their energy bills, and providing financial assistance to workers and nearby communities when fossil fuel infrastructure closes. Since it will take time for the Climate and Community Investment Act to go into effect and begin collecting money from polluters, New York Renews is demanding a $1 billion Climate and Community Investment Fund to be added to this year’s budget to jumpstart spending to benefit low-income communities.

In response to a request for comment from Grist, a representative for Cuomo said in an email that state agencies, in coordination with a new Climate Justice Working Group, will figure out how to devote at least 35 percent of clean energy funding to disadvantaged communities as required by the CLCPA.

State budget negotiations between Cuomo and the legislature will continue through March and will be finalized by March 31. New York Renews is committed to pushing its demands: On February 28, the group is set to gather around 300 activists to visit state legislators within their districts to talk about the budget and the Climate and Community Investment Act. It also plans to start working with the Climate Action Council, a policymaking body that was created under the CLCPA and is set to convene for the first time this month to begin setting specific emissions reductions targets for the state.

“We’re hopeful that the Assembly and Senate budgets will include new spending for climate justice and frontline communities, and that those provisions will be included in the final New York state budget,” Edel said. “Make no mistake, we’ll continue to fight for climate, jobs, and justice at every step of the process.”

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By law, New York has to protect communities from climate change. Cuomo’s budget ignores that.

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The Sound Book: The Science of the Sonic Wonders of the World – Trevor Cox

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The Sound Book: The Science of the Sonic Wonders of the World

Trevor Cox

Genre: Science & Nature

Price: $2.99

Publish Date: February 10, 2014

Publisher: W. W. Norton & Company

Seller: W.W. Norton & Company, Inc.


"A lucid and passionate case for a more mindful way of listening to and engaging with musical, natural, and manmade sounds." —New York Times In this tour of the world’s most unexpected sounds, Trevor Cox—the “David Attenborough of the acoustic realm” (Observer)—discovers the world’s longest echo in a hidden oil cavern in Scotland, unlocks the secret of singing sand dunes in California, and alerts us to the aural gems that exist everywhere in between. Using the world’s most amazing acoustic phenomena to reveal how sound works in everyday life, The Sound Book inspires us to become better listeners in a world dominated by the visual and to open our ears to the glorious cacophony all around us.

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The Sound Book: The Science of the Sonic Wonders of the World – Trevor Cox

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The Call of the Wild – Jack London

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The Call of the Wild

Jack London

Genre: Nature

Price: $4.99

Publish Date: February 18, 2020

Publisher: Big Cheese Books

Seller: De Marque, Inc.


Buck, a sturdy crossbreed canine (half St. Bernard, half Shepard), is a dog born to luxury and raised in a sheltered Californian home. But then he is kidnapped and sold to be a sled dog in the harsh and frozen Yukon Territory. Passed from master to master, Buck embarks on an extraordinary journey, proving his unbreakable spirit… First published in 1903, The Call of the Wild is regarded as Jack London’s masterpiece. Based on London’s experiences as a gold prospector in the Canadian wilderness and his ideas about nature and the struggle for existence, The Call of the Wild is a tale about unbreakable spirit and the fight for survival in the frozen Alaskan Klondike. No other popular writer of his time did any better writing than you will find in “The Call of the Wild”. —H. L. Mencken. Few men have more convincingly examined the connection between the creative powers of the individual writer and the unconscious drive to breed and to survive, found in the natural world… London is in and committed to his creations to a degree very nearly unparalleled in the composition of fiction. —James Dickey

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The Call of the Wild – Jack London

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Science dishes out an answer on the old handwashing vs. dishwasher debate

In my family of origin, there’s a parent who prefers to put all the dishes in the dishwasher and a parent who prefers to do everything by hand. (It just so happens that the parent who likes doing dishes manually is the one who’s worse at cleaning and therefore leaves a light grease sheen on dishes, but that’s neither here nor there.) We all have our own method for getting through what is objectively one of the worst household chores. But which method is best for the environment?

A new study in the journal Environmental Research Communications sheds light on the most energy and water-efficient way to do the dishes. It’s worth noting up front that the study was partially funded by Whirlpool, an appliance manufacturer, and the research was conducted in a “Whirlpool lab” of 38 Whirlpool employees, who were asked to manually wash dishes and load a dishwasher. (It seems safe to assume these employees probably load a dishwasher better than the average American). But the analysis was carried out by independent researchers at the University of Michigan, who also tested the conclusions of previous studies that found dishwashers were more efficient than manual washing.

They found that team “just put it in the dishwasher” is mostly right. In a majority of cases, using a new-ish dishwasher is more efficient than traditional hand-washing techniques. The main problems with dishwashers, the study shows, are pre-rinsing and heated drying. Eliminating those two steps from your dish-washing routine decreases the appliance’s greenhouse gas emissions by 3 percent and 11 percent, respectively.

According to the study, team “just do them by hand” is mostly wrong and should probably start loading the dishwasher more often. Typical manual washing, the kind of washing where you mostly leave the water running as you clean (sound familiar?), produced 5,620 kilograms of greenhouse gases over a 10-year period of washing 32 place settings per week. (The greenhouse gases associated with hand-washing dishes primarily come from the energy it takes to heat the water.) A dishwasher emitted 2,090 kilograms of emissions over the same period with typical use — less than half as much.

When it comes to water use, the difference between manual and machine practices was even starker: Hand-washers used 34,200 gallons of water to a dishwasher’s 16,300 gallons over 10 years. In short, a dishwasher that’s being used correctly emits 63 percent fewer emissions in its entire lifecycle — including manufacturing and disposal — than a typical sink.

However, there’s a silver lining for resource-savvy hand-washers. If you happen to have a two-basin sink, filling one basin with hot water and the other with cool water, and then soaking and scrubbing your dishes in the first and rinsing them in the second — and then letting them air-dry — was the least energy-intensive method out of all the techniques the researchers tested. The two-basin method only produces 1,610 kilograms of emissions over 10 years. Adopting this technique leads to a 249 percent reduction in emissions for people who wash dishes manually.

Still, 1,610 kilograms isn’t that much lower than the 1,960 kilograms a dishwasher produces when it’s being used right (i.e., without pre-rinsing and heated drying). More importantly, 80 percent of Americans own a dishwasher but 20 percent of us report using these appliances less than once a week. Why go through all the trouble and expense of buying a dishwasher if you’re just going to hand-wash your dishes? Dad, are you reading this?

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Science dishes out an answer on the old handwashing vs. dishwasher debate

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A Tour of the Calculus – David Berlinski

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A Tour of the Calculus

David Berlinski

Genre: Mathematics

Price: $12.99

Publish Date: January 13, 1996

Publisher: Knopf Doubleday Publishing Group

Seller: Penguin Random House LLC


Were it not for the calculus, mathematicians would have no way to describe the acceleration of a motorcycle or the effect of gravity on thrown balls and distant planets, or to prove that a man could cross a room and eventually touch the opposite wall. Just how calculus makes these things possible and in doing so finds a correspondence between real numbers and the real world is the subject of this dazzling book by a writer of extraordinary clarity and stylistic brio. Even as he initiates us into the mysteries of real numbers, functions, and limits, Berlinski explores the furthest implications of his subject, revealing how the calculus reconciles the precision of numbers with the fluidity of the changing universe. "An odd and tantalizing book by a writer who takes immense pleasure in this great mathematical tool, and tries to create it in others."–New York Times Book Review

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A Tour of the Calculus – David Berlinski

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