Clipmarks | dmegivern's Environment collection

Human Caused Climate Change

Thu, 15 May 2008 23:26:30 GMT

clipped by: dmegivern
clipper's remarks: Most educated people know that global warming is a misnomer. There are parts of the world that will cool while warming happens elsewhere. The key is to keep the oceanic conveyor belt stable so our climate remains fairly constant.

Clip Source: www.nasa.gov

Earth Impacts Linked to Human-Caused Climate Change

A new NASA-led study shows that human-caused climate change has impacted a wide range of Earth's natural systems, from permafrost thawing to plants blooming earlier across Europe to lakes declining in productivity in Africa.

"This is the first study to link global temperature data sets, climate model results, and observed changes in a broad range of physical and biological systems to show the link between humans, climate, and impacts," said Rosenzweig, lead author of the study.

Next, the scientists conducted statistical tests and found that the spatial patterns of observed impacts closely match temperature trends across the globe, to a degree beyond what can be attributed to natural variability. So, the team concluded that observed global-scale impacts are very likely due to human-caused warming.

Tags: climate, oceanic conveyor belt, environment

The Rich Stand Accused

Fri, 08 Feb 2008 17:31:05 GMT

clipped by: dmegivern

Clip Source: www.adbusters.org

The Rich Stand Accused

If you want to be an ecologist, you have to stop being half-witted.” writes Hervé Kempf, author of the acclaimed Comment les riches détruisent la planète (How the Rich Destroy the Planet, Seuil, 2007). “We cannot understand the simultaneity of the ecological and social crises if we do not analyze them as two facets of the same disaster.”

This oligarchy he targets is not satisfied with blindly consuming and wasting the planet’s material resources with its big cars, its airplane trips, its unbridled consumption of living products, its uselessly vast houses, its unrestrained energy wastage. It has also, adds Kempf, spawned a model of hyper-consumption that the lower and especially the middle classes now attempt to imitate, just as developing countries try to imitate western countries – even though, whether instinctively or rationally, everyone clearly knows that “this ideology of waste” and its drain on planetary resources will inevitably come to an abrupt end.

How Global Warming Affects Your State

Wed, 16 Jan 2008 13:41:24 GMT

clipped by: thinkingblue
clipper's remarks: Just click on your state to inquire how Global Warming will affect the place where you live.

Clip Source: www.nwf.org

Global Warming

Global Warming In Your State

How is global warming affecting your state? Find out here. Click on your state to download a fact sheet about current and future effects of global warming on the people and wildlife in each of the 50 states, Puerto Rico and the U.S. Virgin Islands.

Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
Florida
Georgia
Hawai'i
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana

Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Puerto Rico
Puerto Rico (en espanol)
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virgin Islands
Virginia
Washington
West Virginia
Wisconsin
Wyoming

Nevada Has a Supervolcano

Fri, 08 Feb 2008 17:25:53 GMT

clipped by: dmegivern

Clip Source: dsc.discovery.com

Nevada Supervolcano's Flesh Exposed

Feb. 7, 2008 -- The fault-riddled landscape of northern Nevada has sliced and diced the remains of one of the world's largest volcanoes, providing a rare chance to inspect the innards of the so-called "supervolcano."

The Caetano caldera was a 12-mile-wide crater after it erupted 33.8 million years ago and sent a catastrophic ejection of more than 270 cubic miles of molten, lathered rock into the air.

The Caetano caldera is not related to the Yellowstone eruption, but both were caused by a gigantic plume of hot rock moving up through the crust. Calderas like these are so large that they can't erupt through a single opening, like most volcanoes. Instead, a caldera ejects molten material and gas in a ringed fracture zone.

The land in the center of the ring, which acts like a lid on the huge pool of magma, collapses. The collapsing lid provides even more oomph to the explosion of hot, foaming magma out of the ring of fractures.