Tag Archives: environmentalism

Is Sustainable Fishing Really Possible Right Now?

Conventionally, the term “sustainable fishing” implies a harvesting model by which fish are captured at a sustainable rate ? i.e. one where?the fish population does not notably decline over time due to?overfishing.

Unfortunately, wild fisheries are believed to have peaked and begun their decline ? some would argue an irreversible one. So where does that leave us? Is sustainable fishing really a possibility in 2018? Let’s take a look.

What makes a fishery?”sustainable”?

The goal of a sustainable fishery is to guarantee long term constant yield ? a.k.a. fishing at a level that still allows nature to adjust to its “new normal,” without compromising future stock.

Sustainable fisheries study the population dynamics of fishing, employ individual fishing quotas, and work to curtail destructive fishing practices by lobbying for better policies and setting up protected areas ? the goal, of course, being to maintain healthy habitats, as well as healthy gene pools, and to avoid depleting?fish populations in general.

That said, whether this is enough to ensure?sustainable?harvesting is a really?touchy subject. Keep reading to see?what the research has to say!

Isn’t there plenty of fish to go around?

There really isn’t ? at least, not anymore. Overfishing,?while?considered economically foolish, is not typically considered?unsustainable,?provided that rebuilding the population afterwards would?take no more than a single generation. Unfortunately, it seems that we’ve been overfishing for too long.

Overfishing precedes severe stock depletion and fishery collapse.?Today, more than 80 percent of fish species are either fully exploited, overexploited, depleted, or recovering from depletion. If we do not halt overfishing, it’s predicted that the stocks of all species currently commercially fished will collapse by 2048. That’s just around the corner.

What about farmed fish. Aren’t they immune to overfishing?

Unfortunately, no. Farmed fish are fed products from wild fish (also called forage fish, prey fish or bait fish), populations of which?are also threatened. Simultaneously, fish that occupy higher trophic levels ??salmon, for example ? are carnivorous and require high protein diets to sustain growth throughout the entire lifecycle, making them very inefficient sources of food energy.

This dependence of salmon farming, for example, on the availability of high-quality proteins such as fishmeal and?fish oil is already having negative effects on wild fish stocks. There’s only so much food to go around.

Is overfishing an isolated problem?

Nope. First, as with most environmental issues, overfishing has the potential to drastically alter the balance of our global ecosystem. Experts?are concerned that heavy?fishing, and the resulting loss of marine diversity, may result in a serious erosion of resilience to environmental fluctuations and, ultimately, an inability to recover former levels of productivity. At some point, the ecosystem just can’t take it any more.

Second, overfishing is happening in the context of climate change?and global warming. Rising ocean temperatures, ocean pollution, and ocean acidification are radically altering marine ecosystems (75 percent of the world’s key fishing grounds are affected), while rising sea levels, changing rainfall patterns, and increased drought are putting inland fisheries at risk. No fishery is immune.

Third, overfishing?is beginning to stir up social unrest. With fish supplies declining?all over the world, fisherman are traveling farther and farther to maintain their livelihoods. Frequently, fishermen are forced?to cross over into competitor territory, creating both social and political conflict.

While the geopolitical impact is being felt most strongly in Southeast Asia, mainly the South China Sea, tensions between Mexico and Florida, as well as?Russia and those fishing?in the Bering Sea are growing. If overfishing continues, you can expect international conflict?to grow with it.

What?can I do about it?

As Captain Paul Watson says, there’s no such thing as sustainable seafood in a dying ocean. “If the oceans die, we die.” If you want to protect marine wildlife and prevent the negative affects of overfishing, lowering?your seafood consumption?is the best thing you can do.

You can also make a difference by becoming more informed on issues of overfishing. Many people are still unaware of the consequences of overfishing. Fortunately, you are not!


Does overfishing worry you? ?What are you going to do about it?

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

Read article here: 

Is Sustainable Fishing Really Possible Right Now?

Posted in alo, aquaculture, bigo, FF, GE, LAI, LG, ONA, PUR, Ultima, Uncategorized | Tagged , , , , , , , | Comments Off on Is Sustainable Fishing Really Possible Right Now?

Could Your Car Run on Algae?

View post:

Could Your Car Run on Algae?

Posted in FF, GE, LAI, LG, ONA, Uncategorized | Tagged , , , , , , , , , , | Comments Off on Could Your Car Run on Algae?

Your Compost Will Not Attract Vermin, Take Over Your Apartment or Produce Toxic Fumes

Photo: GPL

Environmentally conscientious New Yorkers will soon be able to compost their organic food scraps without walking 20 minutes to the nearest Green Market or tending to a bucket of worms to create their own homegrown soil. Last week, Mayor Michael Bloomberg announced that he’s implementing a food composting program in the city. Like regular garbage and recyclables, the city will offer curbside pick-up of compostable food scraps such as banana peels, coffee grinds and wilted veggies.

Not everyone is on board, however. Some New Yorkers cite a fear of hypothetical vermin. The New York Post, for example, reports:

Skeptical city residents say Mayor Bloomberg’s new food-waste-recycling program is a great idea — if you’re a rat.

“Recycling, in general, takes a lot of effort,” said Geneva Jeanniton, 22, a hairstylist from East Flatbush, Brooklyn.

“People have to be willing to do it. We might not have room for compost inside. It’s difficult to make space for, and pests are definitely a concern.”

Of course, those organic scraps currently wind up in the garbage anyway. The New York Post doesn’t explain why they would be more likely to attract vermin stored on a separate container rather than in the trash bin. And while it’s true that following environmental regulations can be annoying, that’s not exactly a reason to discount them. Most would likely agree that the Clean Water and Air Acts, for example, were a good thing.

Space is another complaint that comes up, but compost advocates say it’s also a flimsy excuse. Even the most crowded New York apartment is garunteed to have space for a small bag of scraps, whether in the freezer, under a sink, in the back of a closet or on top of the shelves. Rebecca Louie, aka the Compostess, is a certified composter who helps New Yorkers deal with their greatest fears about composting (as in, producing their own compost rather than just putting their scraps out on the curb for the city to conveniently deal with). Most of people’s worries, she told Edible Magazine, are completely unfounded in reality:

“Whether you have a penthouse or a studio, I will find a space in your space where you can start doing this,” she says.

[She] calmly alleviates her clients’ fears about odors (save for the occasional “gentle onion breeze,” composting done right only produces perfumes of “beautiful earth”) and cockroaches (they can’t invade so long as the bin is properly sealed).

“Things can be done to prevent whatever people’s greatest fears are,” she says. “Like a personal trainer or accountant, I know that every client has his or her own schedule, set of needs, concerns and degree to which they want to engage with their compost system.”

Meanwhile, a research team raised eyebrows with results showing that a number of fungal species, including some that could be harmful to humans, turn up in compost made of rice, sugar cane and coffee, mixed with livestock poop. Of course, unless you’re mixing livestock poop in with your lunch, this study doesn’t really apply to NYC composters. That doesn’t stop some from worrying though. Here’s Inkfish:

Although the composts De Gannes studied weren’t quite what New Yorkers would be collecting in their kitchens—unless they’re keeping pet sheep too—some of the potentially dangerous fungi she found have also turned up in studies of all-plant compost.

Keeping a compost bucket in an enclosed space is “potentially risky,” Hickey and De Gannes wrote in an email. Fungal spores floating on the air can cause infections, especially in people with weakened immune systems. “Compost kept in an enclosed area like a small apartment would probably not have adequate ventilation.”

What Inkfish doesn’t mention is that these fungal samples were collected after the compost sat around for 82 days – a bit longer than the week or less that it will take the city to come collect your scraps.

So far, the thousands of people who already create their own compost in enclosed apartments do not seem to have fallen victim to a bout of eye and lung infections. And the residents of the cities of San Francisco and Portland, where compost pick up has long been offered by the city, haven’t complained much.

And if you’re really paranoid about fungus you’ve got some options. Simply freezing the scraps can alleviate any fears of fungal attack, and compost bins can also be installed alongside buildings’ garbage and recycling containers in the basement or on the curb, as they are on the West coast.

Plus, composting has some environmental benefits to consider: when organic matter decays in tightly packed, oxygen-poor landfills, it releases methane, a greenhouse gas around 20 times more potent than carbon dioxide. Every day, New York produces around 12,000 tons of organic waste. Is putting a bag of wilted lettuce into a compost pick-up bin next to your garbage really so much to ask?

More from Smithsonian.com:

Turning Fallen Leaves into Dinner Plates
Corn Plastic to the Rescue

From: 

Your Compost Will Not Attract Vermin, Take Over Your Apartment or Produce Toxic Fumes

Posted in alo, ATTRA, FF, G & F, GE, ONA, organic, Uncategorized | Tagged , , , , , , , , , , , | Comments Off on Your Compost Will Not Attract Vermin, Take Over Your Apartment or Produce Toxic Fumes