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Miss Leavitt’s Stars: The Untold Story of the Woman Who Discovered How to Measure the Universe (Great Discoveries) – George Johnson

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Miss Leavitt’s Stars: The Untold Story of the Woman Who Discovered How to Measure the Universe (Great Discoveries)

George Johnson

Genre: Physics

Price: $1.99

Publish Date: June 17, 2006

Publisher: W. W. Norton & Company

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


"A short, excellent account of [Leavitt’s] extraordinary life and achievements." —Simon Singh, New York Times Book Review George Johnson brings to life Henrietta Swan Leavitt, who found the key to the vastness of the universe—in the form of a “yardstick” suitable for measuring it. Unknown in our day, Leavitt was no more recognized in her own: despite her enormous achievement, she was employed by the Harvard Observatory as a mere number-cruncher, at a wage not dissimilar from that of workers in the nearby textile mills. Miss Leavitt’s Stars uncovers her neglected history.

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Miss Leavitt’s Stars: The Untold Story of the Woman Who Discovered How to Measure the Universe (Great Discoveries) – George Johnson

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Hold on to your snowballs: More Americans accept the reality of climate change than ever before

Seventy-three percent! That’s the proportion of Americans who now think there is “solid evidence” of global climate change, according to a new report released by National Surveys on Energy and the Environment (NSEE). It’s the highest percentage since the survey started in 2008.

Good news? Sort of. Even those who accept the reality of climate change are still hazy on the causes. Only 34 percent of those sampled believed that climate change is due primarily to human activity, as established science indicates. As for the rest, 26 percent thought it was partially due to humans and 12 percent blamed natural causes. Come on, people!

Before you tear your hair out, here’s a quick lesson in the types of climate denial. “Trend deniers” are people who question whether the climate is changing at all — like the infamous snowball-throwing James Inhofe. “Attribution deniers,” on the other hand, question whether the changes can be linked to human influence — more in line with Scott Pruitt’s oh-so-vague climate beliefs.

Evidence suggests that trend deniers are on a sharp decline. Only 15 percent of those sampled in this study believed the climate was not changing at all. “That’s the lowest percentage since we started the survey,” says Barry Rabe, coauthor of the report and professor at the University of Michigan.

This has been a long time coming. Americans are experiencing more extreme weather on a personal level (heat waves, anybody?) and are seeing a growing number of reports about rising sea levels and melting polar ice.

National Surveys on Energy and Environment

But at the same time, attribution deniers are still around — and they present problems for anyone hoping to pass climate legislation.

“Those who are averse to mitigation aren’t as vehemently challenging the science of climate change, as they are the ability of policies to make any difference,” says Christopher Borick, director of the Muhlenberg Institute of Public Opinion and another coauthor of the report.

This has been particularly visible in the Trump administration, where climate denial has taken the form of rejecting human influence rather than rising temperatures more generally. And, by denying the role of humans, the Trump team has absolved itself of making any significant policy changes — well, except for rolling back environmental regulations.

At least we don’t have to waste as much paper showing why a single snowball doesn’t disprove the reality of a warming world. But if you think that climate change is only partially — or not at all — caused by humans, you’re even less likely to take the drastic actions needed to prevent catastrophe.

“In general, having Americans accept the existence of climate change is a necessary condition for policy action,” Borick argues. “But it’s not sufficient.”

Borick and Rabe are hopeful that we will continue see slow movement toward both acceptance and action. The surveys show some hints that trend deniers can become attribution deniers — and that attribution deniers, in turn, may eventually accept the full science of climate change. But, if the last decade is any indication, it’s going to take a while.

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Hold on to your snowballs: More Americans accept the reality of climate change than ever before

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How to Conduct a Home Energy Audit

Energy is a precious resource, and wasting it can really?take a toll on your monthly utility bill and on the environment. On the flip side, taking the time to locate and address your home’s greatest inefficiencies is one of the best things you can do to ensure the energy?you’re buying is being put to good use.

But how do you discover those energy inefficiencies? A home energy audit of course!?So block out your Saturday??? it’s time to take a tour of the?attic, windows and doors, and a couple of stops?in between. Here’s what you’ll need before you get started:

  1. A clipboard and pencil to take notes
  2. A smartphone or computer with internet access
  3. A measuring tape or ruler
  4. A stick or two of incense and matches

Step #1: Take a peek at?your insulation.

On average,?30 percent of heated air is lost through leaks in attic floors. That’s 30 percent of your heating costs going toward energy that will never heat your home! According to the Department of Energy, the vast majority of homes built before 1980 were not properly insulated when built.

Ready to find out if your home is?losing conditioned air? Follow these steps:

  1. Fill out this form to determine your home’s recommended R-value (a measure of thermal resistance)
  2. Submit the form and mark down your results. Save for later.
  3. Measure the depth of visible insulation in your attic using this tutorial.
  4. Calculate your home’s current R-value.

Return to the recommended R-value you discovered in step one. Is your home’s R-value less than the recommended value? You’re probably losing energy. Consider hiring a contractor to insulate your place!

Step #2:?Check for draftiness.

Besides gaps in the attic, drafty walls and crawl spaces are also big causes of wasted energy. Air leaks can be a little bit difficult to find, but sealing them up can make a huge difference in the comfort of your home.

Here’s how to find air leaks in your house:

  1. Shut all windows, fireplace flues and exterior doors (leave interior doors open).
  2. Turn on every exhaust fan that blows air outside (clothes dryer, bathroom fans, vents, etc.).
  3. Light an incense stick and hold?it in front of access points like doors and window frames, as well as attic hatches, electrical outlets and vents.
  4. Look for smoke that wavers or blows in odd directions. This signals a draft!

Step #3: Examine your windows.

Those windows giving you all that gorgeous natural light could also be a main source of energy loss! Similar to insulation, windows?are rated by U-factor ? aka their ability to keep conditioned air inside where it belongs. The lower the rating, the better.

Here’s how to check your windows:?

  1. Grab the R-value you calculated earlier in step number one.
  2. Input that value into this calculator and leave the U-factor section blank. Calculate.
  3. Mark down the result. This is the?recommended U-factor for your home!

If the U-factor you calculated is a lot lower than the U-factor listed on your windows, you are most certainly losing energy. They aren’t up to snuff. To solve the issue, look into replacing single pane windows with double pane windows, as well as considering air sealing.

Action Steps

Make it through? By now you should have a solid idea of whether your home is well-insulated and well-sealed, as well as whether it’s operating efficiently or inefficiently. Take note of those areas of improvement. Every upgrade?you make?to address energy inefficiencies is a step toward a more comfortable, more eco-friendly home.

These upgrades are also a great investment!?Looking to sell your place in the future? A well-insulated home will be much more attractive to buyers. Sticking with your place for the long haul? You’ll get to reap the benefits for years to come. Enjoy it!

What steps have you taken to make your home and your lifestyle more eco-friendly?

Related Stories:

9 Questions to Ask Before Buying Solar Panels
11 Home Energy Enhancers
An Easy Guide to Saving Energy in Your Home

Disclaimer: The views expressed above are solely those of the author and may not reflect those of Care2, Inc., its employees or advertisers.

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How to Conduct a Home Energy Audit

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Republicans Unveil Their Health Care Plan. It’s a Bloodbath.

Mother Jones

<!DOCTYPE html PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN” “http://www.w3.org/TR/REC-html40/loose.dtd”>

Republicans have finally released their shiny new health care plan. It’s pretty much the same as the discussion draft that leaked a couple of weeks ago, and includes the following basic features:

Subsidies (in the form of advanceable tax credits) are age-based, starting at $2,000 for young people and going up to $4,000 for older folks.
The subsidies begin to phase out above incomes of $75,000 ($150,000 for households). This will affect about 10 percent of the population and probably reduces the cost of the bill by about 5 percent.
Obamacare’s Medicaid expansion is frozen in 2020 and then gradually phased out.
The bill allocates about $10 billion per year for high-risk pools run by states. This is far too little to work effectively.
The tax meant to pay for everything was removed.
Insurers are required to cover everyone who applies, even if they have pre-existing conditions. However, if you have a coverage gap longer than two months, insurers can impose a premium surcharge of 30 percent for one year. This “continuous coverage” provision is designed to motivate people to buy insurance, since the bill repeals the individual mandate.
The funding formula for Medicaid is changed to a “per-capita allotment,” which is a fancy way of saying it gets cut.
All the Obamacare taxes on the rich are repealed.

Oh, and the bill includes a one-year ban on funding for Planned Parenthood. Conservatives love this, but it’s also likely to generate some sure no votes in the Senate. Remember that Republicans can only afford two defections in the Senate. Any more than that and their bill fails.

Needless to say, there’s not yet an analysis from the Congressional Budget Office about how much the GOP plan will cost or how many people it will cover. It’s safe to say that on the cost side, it will be a lot cheaper than Obamacare. In fact, since the tax credits are so stingy, it’s likely that very few people in the bottom third of the income spectrum will use them. They leave insurance too expensive for most poor people to afford.

Because of this, my horseback guess is that the Republican plan will be used by about 3 million people, compared to 10 million for Obamacare. The Medicaid expansion will be unchanged for a while, continuing to cover about 10 million people. Total cost for subsidies + high-risk pools + Medicaid expansion will run about $25 billion per year, compared to $100 billion for Obamacare.

Three million is far too small a pool for any kind of successful program, and the pre-existing conditions clause ensures that the pool will be not just small, but very, very heavily weighted toward the very sick. It’s a disaster for insurance companies, who will almost surely refuse to participate.

That’s my guess, anyway. It’s a bloodbath. More detailed analysis from think tankers will be available soon, and the CBO will weigh in eventually too. It’s not going to be pretty.

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Republicans Unveil Their Health Care Plan. It’s a Bloodbath.

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The world needs better sidewalks and bike paths, like now.

According to a study by Australian researchers, adding very small amounts of a particular seaweed to bovine diets could reduce the amount of methane cows release by up to 99 percent.

The seaweed, Asparagopsis taxiformis, produces a compound called bromoform that disrupts the enzymes that make methane in a cow’s gut, the Conversation reports. And methane in cows’ guts is a serious issue because it escapes into the atmosphere in the form of burps (and to a lesser degree, farts). Livestock is a major global contributor to methane emissions, and methane traps 86 times more heat than carbon dioxide over a 20-year time frame.

While this reduction in cow methane has only been demonstrated in the lab, if adding seaweed works in the field, it could be a big benefit to this ol’ planet we call home — and further evidence that seaweed in general may be the salty savior we’ve been looking for. Beyond its potential application in reducing cow burps, seaweed is also inexpensive, resilient, easy to grow, and improves aquatic ecosystems by filtering excess nitrogen and phosphorous from the watershed and reducing ocean acidification.

So while we are loathe to attach the term “miracle” to any food, seaweed might actually warrant it.

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The world needs better sidewalks and bike paths, like now.

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Lake Titicaca has 10,000 problems and dead scrotum frogs are all of them.

According to a study by Australian researchers, adding very small amounts of a particular seaweed to bovine diets could reduce the amount of methane cows release by up to 99 percent.

The seaweed, Asparagopsis taxiformis, produces a compound called bromoform that disrupts the enzymes that make methane in a cow’s gut, the Conversation reports. And methane in cows’ guts is a serious issue because it escapes into the atmosphere in the form of burps (and to a lesser degree, farts). Livestock is a major global contributor to methane emissions, and methane traps 86 times more heat than carbon dioxide over a 20-year time frame.

While this reduction in cow methane has only been demonstrated in the lab, if adding seaweed works in the field, it could be a big benefit to this ol’ planet we call home — and further evidence that seaweed in general may be the salty savior we’ve been looking for. Beyond its potential application in reducing cow burps, seaweed is also inexpensive, resilient, easy to grow, and improves aquatic ecosystems by filtering excess nitrogen and phosphorous from the watershed and reducing ocean acidification.

So while we are loathe to attach the term “miracle” to any food, seaweed might actually warrant it.

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Lake Titicaca has 10,000 problems and dead scrotum frogs are all of them.

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Rising seas could zap billion-dollar space equipment.

According to a study by Australian researchers, adding very small amounts of a particular seaweed to bovine diets could reduce the amount of methane cows release by up to 99 percent.

The seaweed, Asparagopsis taxiformis, produces a compound called bromoform that disrupts the enzymes that make methane in a cow’s gut, the Conversation reports. And methane in cows’ guts is a serious issue because it escapes into the atmosphere in the form of burps (and to a lesser degree, farts). Livestock is a major global contributor to methane emissions, and methane traps 86 times more heat than carbon dioxide over a 20-year time frame.

While this reduction in cow methane has only been demonstrated in the lab, if adding seaweed works in the field, it could be a big benefit to this ol’ planet we call home — and further evidence that seaweed in general may be the salty savior we’ve been looking for. Beyond its potential application in reducing cow burps, seaweed is also inexpensive, resilient, easy to grow, and improves aquatic ecosystems by filtering excess nitrogen and phosphorous from the watershed and reducing ocean acidification.

So while we are loathe to attach the term “miracle” to any food, seaweed might actually warrant it.

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Rising seas could zap billion-dollar space equipment.

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Oil companies should be scared of electric vehicles.

According to a study by Australian researchers, adding very small amounts of a particular seaweed to bovine diets could reduce the amount of methane cows release by up to 99 percent.

The seaweed, Asparagopsis taxiformis, produces a compound called bromoform that disrupts the enzymes that make methane in a cow’s gut, the Conversation reports. And methane in cows’ guts is a serious issue because it escapes into the atmosphere in the form of burps (and to a lesser degree, farts). Livestock is a major global contributor to methane emissions, and methane traps 86 times more heat than carbon dioxide over a 20-year time frame.

While this reduction in cow methane has only been demonstrated in the lab, if adding seaweed works in the field, it could be a big benefit to this ol’ planet we call home — and further evidence that seaweed in general may be the salty savior we’ve been looking for. Beyond its potential application in reducing cow burps, seaweed is also inexpensive, resilient, easy to grow, and improves aquatic ecosystems by filtering excess nitrogen and phosphorous from the watershed and reducing ocean acidification.

So while we are loathe to attach the term “miracle” to any food, seaweed might actually warrant it.

See original article here:

Oil companies should be scared of electric vehicles.

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This Simple Change Slashed England’s Plastic Bag Use By 90%

Although the mere suggestion of making people pay a fee to bring their groceries home in a plastic bagcauses nothing short of outragein most American communities, a fellow developed nation’sexperiment with just such a bag fee recently provided definitive proof that such “taxes” can be shockingly effective.

See, we have this idea that plastic bags are free, a bonus gift provided by the store so that we can get our eggs home in one piece. Truthfully, thecost of offering disposable bags is simply passed on to the consumer in the form of higher product prices.(According to The Wall Street Journal, the estimated cost is somewhere around$4 billion.)

We say “cost” in the traditional sense, of course, becauseif you factored in the cost of what these bags are doing to the environment AFTER our eggs are safely in the fridge, it would make your eyes water.

According to the Environmental Protection Agency, over 380 billion plastic bags, sacks and wraps are consumed in the U.S. each year.

Producing all of these bags requires upwards of 2.2 billion pounds of fossil fuel and 3.9 billion gallons of fresh water. The manufacturing of these bags alone produces a billion pounds of solid waste and 2.7 million tons of CO2 per year. And that’s all BEFORE the bagger at the grocery store tucks your eggs inside.

Most of those 380 billion plastic bags are only used for 12 minutes, before being tossed into the trash (few recycling programs accept them) and making their way into our waterways.

“The mass consumption of plastic products has created a plastic wasteland in our oceans. Globally, there is now more plastic in our oceans than plankton, with 46,000 pieces of plastic in every square mile of ocean. Marine and avian are choked and strangled by discarded bags, and are killed by consuming partially broken-down plastic pieces. This plastic pollution negatively impacts 267 species of marine life,” reports Citizens Campaign for the Environment.

If you feel like shouting “STOP THE MADNESS!” you’re not alone.

So how do you get billions of people around the world to start bringing their own reusable bags to the store? Hit ‘em where it hurts: their wallets.

England instituted a 5 pence (approximately 7 cents USD) fee for bag in October 2015, and since then, around 90 percent of people now take their own bags with them when food shopping as a result of the plastic carrier bag charge.

NINETY PERCENT!

In addition to this shocking drop in plastic bag use, less than 1 in 15 shoppers (7 percent) are now regularly taking single-use carrier bags at the checkout as opposed to 1 in 4 shoppers before the charge.

Accordingresearchers at Cardiff University, the study indicates that thecharge made shoppers stop and think whether they really need to use a single-use plastic bag for their shopping.

And the answer, contrary to what many in the plastic bag industry might say, is a resounding ‘no.’

Image Credit: Thinkstock

Disclaimer: The views expressed above are solely those of the author and may not reflect those of Care2, Inc., its employees or advertisers.

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This Simple Change Slashed England’s Plastic Bag Use By 90%

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Ben & Jerry’s keeps trying to save the world with ice cream (and beer)

Ice Cream Doomsday

Ben & Jerry’s keeps trying to save the world with ice cream (and beer)

By on Jun 24, 2016 6:36 amShare

Ben & Jerry’s may be as well-known for its founders’ progressive politics as for its delicious ice cream — but not as much for beer, unless you take an unconventional approach to sweetening your Keystone Ice. But all three are forming a perfect ménage à trois in the form of Chocolate Cookie Dough Ale, a forthcoming beer that the iconic ice cream company is creating in partnership with New Belgium Brewing.

An estimated $50,000 in proceeds from the beer will go to Protect Our Winters (POW), a nonprofit dedicated to raising awareness of climate change. POW was founded by pro snowboarder Jeremy Jones, who realized in the last decade that all these warming temps spell bad news for sick powder days ahead.

This is the second time the two companies have partnered: Last year, New Belgium and Ben & Jerry’s teamed up to to create Salted Caramel Brownie Brown Ale and Salted Caramel Brownie Ale Ice Cream, with proceeds also benefiting POW. And it’s also not the first time Ben & Jerry’s has developed a new ice cream flavor to raise climate awareness — last summer, the company blessed us with “Save Our Swirled.”

While we would never refuse beer (or ice cream) for a good cause, it makes you wonder — if drinking beer and eating delicious frozen dairy products could really help save the planet, wouldn’t we be saved by now? Regardless, the beer drops this fall — see you in the cooler section.

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Ben & Jerry’s keeps trying to save the world with ice cream (and beer)

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