If cleaning carbon dioxide from the atmosphere was easy, we'd already be doing it. But carbon capture has proven to be a tough technology to feasibly roll out on a grand scale, and that means all the things we do that produce carbon dioxide emissions--which seems to be just about everything these days--are still roughly as bad for the planet as they were several years ago.
Coal-derived emissions pouring from smokestacks across Asia are--perhaps counterintuitively--responsible for a pause in global warming in the decade following 1998, but that's no real reason to celebrate. The halt in rising temperatures is a result of the large amounts of sulfur in those emissions, which can have a cooling effect on the planet.
Reducing cargo ships’ weight would be a major step in reducing the carbon emissions of the worldwide freight industry. Fraunhofer Labs in Germany has one possible solution: ship hulls made from lightweight, stiff aluminum foam.
Researchers at the University of Newcastle in the UK have created a new kind of concrete glue that can patch up the cracks in concrete structures, restoring buildings that have been damaged by seismic events or deteriorated over time.
UK researchers seeking to cut back on greenhouse gases have found a deliciously potent weapon for fighting agricultural methane emissions: curry. It turns out two spices customarily used to season curry dishes -- coriander and turmeric -- have an antibiotic effect in the stomachs of sheep and cows, killing methane-producing bacteria there. By spicing up animal feeds, farmers could reduce methane emissions from farms by up to 40 percent.
It’s no secret that the world is warming, but a new report published by the World Wildlife Fund suggests we may not have as much time to mull solutions as we think. If the world doesn’t commit to green technologies by 2014, the report says, runaway global warming and economic meltdown are all but unstoppable.
In an attempt to both strengthen the US's negotiating hand in the upcoming Copenhagen climate talks, and to prod domestic lawmakers into swifter action on lasting legislation, the White House has told the Environmental Protection Agency to move forward with new rules regulating greenhouse gas emissions.
Last week, the owners of the Empire State Building announced they were going to turn their iconic New York landmark green — as in sustainable (the color is fine as is)
By Dr. Bill ChameidesPosted 04.17.2009 at 1:07 pm 1 Comment
PopSci.com welcomes Dr. Bill Chameides, dean of Duke's Nicholas School of the Environment. Dr. Chameides blogs at The Green Grok to spark lively discussions about environmental science, keeping you in the know on what the scientific world is discovering and how it affects you – all in plain language and, hopefully, with a bit of fun. PopSci.com partners with The Green Grok, bringing his blog posts directly to our users. Give it a read and get in on the discussion!
Far sooner than popularly anticipated, the PPX stock GASTRTY was halted and delisted this morning, for a payout of POP$100 per share. The proposition promised a payout if China and the U.S. sign a binding treaty concerning their greenhouse-gas emissions by 2009. Over the weekend, the two nations joined nearly 200 others in a deal to phase out hydrochlorofluorocarbons (HCFCs) over the next 13 years.
Trading at $52.25 at close, the market was (just) predicting correctly. Slight ambiguity in the proposition's wording may have contributed to the lack of optimism—though a dangerous greenhouse gas, HCFCs form just a fraction of the total emissions. Carbon dioxide, on the other hand, makes up over 80 percent of greenhouse gas emissions and is more likely to be the problem one might expect an international treaty to tackle. Nevertheless, an agreement concerning greenhouse gas emissions was signed by China and the United States, and, with the requirements technically met, the proposition paid out. Be on the lookout for a more expanded proposition on this subject.—Abby Seiff
By Dawn StoverPosted 07.13.2007 at 3:06 pm 2 Comments
Living in a New York City apartment on a journalist's budget is one way to rein in your greenhouse gas emissions. But a woman in Olympia, Washington, has it all over our two editors who are vying for green bragging rights. Dee Williams lives in a standalone house, not an apartment. But her house measures only 84 square feet.
The tiny house incorporates recycled materials and cost about $10,000 to build. It has heat, electricity and a composting toilet, but no running water.
Williams says she wanted to reduce her impact on the planet, and didn't feel right about spending a lot of time and money on a house when people in other parts of the world have so little. —Dawn Stover