Pollution

Woodstoves and Pellet Stoves
September 23, 2009 10:01 AM - , Sierra Club Green Home

Cleaner ways to burn an ancient fuel Humans have been using wood fires for heating somewhere between 400,000 and a million years. Today, though, using wood involves some compromises. Modern wood-burning systems have much, much lower emissions than old ones, but still can emit more than 100 times as much pollution. This article outlines some cleaner ways to burn an ancient fuel

China Pledges to Curb CO2 Emissions
September 23, 2009 06:57 AM - Paul Eckert and Claudia Parsons, Reuters

Chinese President Hu Jintao on Tuesday promised to put a "notable" brake on the country's rapidly rising carbon emissions, but dashed hopes he would unveil a hard target to kickstart stalled climate talks. The leader of the world's biggest emitter told a U.N. summit that China would pledge to cut "carbon intensity," or the amount of carbon dioxide produced for each dollar of economic output, over the decade to 2020.

Honey, We're filling that hole in the Ozone Layer!
September 22, 2009 06:39 AM - R. Greenway, ENN

The European Space Agency has presented the results of an important analysis of upper stratospheric ozone, important in shielding Earth from ultraviolet rays. The ozone layer is not distributed evenly, with more changes occurring in the upper stratosphere. By collecting data while looking sideways (limb viewing) rather than vertically downwards, instruments are able to provide highly accurate measurements of the stratosphere. By merging more than a decade of atmospheric data from European satellites, scientists have compiled a homogeneous long-term ozone record that allows them to monitor total ozone trends on a global scale – and the findings look promising.

River Deltas Sinking
September 21, 2009 06:19 AM - Science Daily

A new study led by the University of Colorado at Boulder indicates most of the world's low-lying river deltas are sinking from human activity, making them increasingly vulnerable to flooding from rivers and ocean storms and putting tens of millions of people at risk.

Electrifying New Jay Leno Show
September 19, 2009 02:52 PM - Jeremy Hart, Autotopia

Jay Leno is to cars as Taylor Swift is to music videos. His legendary Los Angeles garage is a shrine to internal combustion, packed with cars and motorcycles of every description. With the rest of Hollywood switching from Porsches to Priuses, it might seem Leno is at the back of the eco pack. But he’s catching up — and he wants to bring America with him. The popular TV host and avowed gearheard is using his new prime-time program to bring electric vehicles into your living room. The Pied Piper of Petrol is asking A-list celebrities to race against the clock in a recurring feature called “The Green Car Challenge.”

Arctic Geese Skip Migration
September 18, 2009 11:05 AM - Michael Reilly, Discovery News

In the Fall of 2007, tens of thousands of small arctic geese called Pacific brant (Branta bernicla nigricans) decided not to go south for the winter. For these long-haul migratory birds, it was a dramatic choice -- they usually spend the cold months munching their favorite eel grass in the waters off Mexico's Baja peninsula.

Arctic Ice Third-smallest on Record
September 18, 2009 06:53 AM - Steve Gorman, Reuters

The Arctic's sea ice pack thawed to its third-lowest summer level on record, up slightly from the seasonal melt of the past two years but continuing an overall decline symptomatic of climate change, U.S. scientists said on Thursday.

White House Unveils Landmark Fuel Economy and Emissions Standards
September 17, 2009 06:49 AM - Nick Chambers, Matter Network

Today the Obama Administration released a 1,200 page document of proposed regulation changes that will drastically alter the fuel economy and emissions standards that auto manufacturers are required to meet in the US. Although it could be an incredibly contentious topic, it seems that so far the proposal has gained wide support from all sides of the spectrum including environmental organizations and industry lobby groups.

Global Warming Could Cool N. America
September 16, 2009 06:16 AM - Kate Ravilious, National Geographic

Global warming could actually chill down North America within just a few decades, according to a new study that says a sudden cooling event gripped the region about 8,300 years ago.

Oil And Wildlife Don't Mix In Ecuador's Eden
September 15, 2009 11:38 AM - ScienceDaily

A study by WCS field scientists in the park found that the presence of a single road in a protected area and the subsidies provided by oil companies to local people can fundamentally change how indigenous communities use their resources by providing both access to deeper parts of the forest and a cheap means of getting meat to nearby wildlife markets.

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