Climate

Burning Leaves is Bad News
September 25, 2009 03:43 PM - , Sierra Club Green Home

Remember the smell of burning fall leaves wafting through the air? Good memories, indeed, but best that they remain just memories. Burning leaves is bad news. This practice is now illegal – or at least highly discouraged – in most areas.

Greenhouse Gas Reporting Requirements Finalized
September 25, 2009 07:08 AM - R. Greenway, ENN

A major new regulatory requirement, starting January 1, 2010, will affect most large industrial and utility combustion sources in the US. Fossil fuel and industrial GHG suppliers, motor vehicle and engine manufacturers, and facilities that emit 25,000 metric tons or more of CO2 equivalent per year will be required to report GHG emissions data to EPA annually. This threshold is equivalent to about the annual GHG emissions from 4,600 passenger vehicles.

Thinning Of Greenland And Antarctic Ice
September 24, 2009 06:07 AM - Science Daily

The most comprehensive picture of the rapidly thinning glaciers along the coastline of both the Antarctic and Greenland ice sheets has been created using satellite lasers. The findings are an important step forward in the quest to make more accurate predictions for future sea level rise.

Dust storm blankets Sydney as drought bites
September 23, 2009 09:47 AM - Michael Perry, Reuters

A huge outback dust storm swept eastern Australia and blanketed Sydney on Wednesday, disrupting transport, forcing people indoors and stripping thousands of tonnes of valuable farmland topsoil.

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.

Floodgates Might Not Save Venice
September 21, 2009 04:13 PM - Sylvia Poggioli, NPR

The construction of mobile floodgates aims to safeguard the 1,300-year-old island city of Venice. It's an ambitious engineering project, but some scientists say it may not be sufficient to protect Venice from rising sea levels due to climate change. Venice rose from mudflats in the middle of a lagoon which forms the largest wetland in the Mediterranean. One of the world's most endangered cities, it has been subject to increasing flooding due to sinking land — but also to rising sea levels.

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.

Antarctica's hidden plumbing revealed
September 20, 2009 10:58 AM - New Scientist from, Environmental Health News

The first complete map of the lakes beneath Antarctica's ice sheets reveals the continent's secret water network is far more dynamic than we thought. This could be acting as a powerful lubricant beneath glaciers, contributing to sea level rise. Unlike previous lake maps, which are confined to small regions, Ian Joughin at the University of Washington in Seattle and colleagues mapped 124 subglacial lakes across Antarctica using lasers on NASA's ICESat satellite (see map).

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.”

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