News tagged with dioxide levels

Cuts in greenhouse gas emissions would save Arctic ice, reduce sea level rise

The threat of global warming can still be greatly diminished if nations cut emissions of heat-trapping greenhouse gases by 70 percent this century, according to a new analysis. While global temperatures would ...

Space & Earth / Earth Sciences

created Apr 14, 2009 | popularity 4.5 / 5 (90) | comments 15

Global sea level likely to rise as much as 70 feet for future generations

Even if humankind manages to limit global warming to 2 degrees C (3.6 degrees F), as the Intergovernmental Panel on Climate Change recommends, future generations will have to deal with sea levels 12 to 22 meters (40 to 70 ...

Space & Earth / Earth Sciences

created Mar 19, 2012 | popularity 3.3 / 5 (32) | comments 256 | with audio podcast

USF Study Shows First Direct Evidence of Ocean Acidification

(PhysOrg.com) -- Seawater in a vast and deep section of the northeastern Pacific Ocean shows signs of increased acidity brought on by manmade carbon dioxide in the atmosphere -- a phenomenon that carries with ...

Space & Earth / Earth Sciences

created Jan 20, 2010 | popularity 3.8 / 5 (27) | comments 54 | with audio podcast

Researchers discover source for generating 'green' electricity

University of Minnesota engineering researchers in the College of Science and Engineering have recently discovered a new alloy material that converts heat directly into electricity. This revolutionary energy conversion method ...

Physics / Condensed Matter

created Jun 22, 2011 | popularity 4.8 / 5 (19) | comments 21 | with audio podcast

How hot did Earth get in the past? Scientists uncover new information

The question seems simple enough: What happens to the Earth's temperature when atmospheric carbon dioxide levels increase? The answer is elusive. However, clues are hidden in the fossil record. A new study ...

Space & Earth / Earth Sciences

created Jul 05, 2011 | popularity 5 / 5 (18) | comments 52 | with audio podcast

Carbon dioxide affecting fish brains: study

Rising human carbon dioxide emissions may be affecting the brains and central nervous systems of sea fish, with serious consequences for their survival, according to new research.

Space & Earth / Environment

created Jan 16, 2012 | popularity 4.1 / 5 (15) | comments 15

The Carbon Cycle Before Humans

Geoengineering -- deliberate manipulation of the Earth's climate to slow or reverse global warming -- has gained a foothold in the climate change discussion. But before effective action can be taken, the Earth's ...

Space & Earth / Earth Sciences

created Feb 16, 2010 | popularity 3.1 / 5 (19) | comments 1 | with audio podcast

Greenhouse gases soar; no signs warming is slowed

(AP) -- Heat-trapping greenhouse gases in the atmosphere are building up so high, so fast, that some scientists now think the world can no longer limit global warming to the level world leaders have agreed upon as safe.

Space & Earth / Environment

created Nov 21, 2011 | popularity 4.4 / 5 (13) | comments 61

Acid test: Study reveals both losers and winners of CO2-induced ocean acidification

(PhysOrg.com) -- As the world’s seawater becomes more acidic due to rising atmospheric carbon dioxide, some shelled marine creatures may actually become bigger and stronger, according to a new study.

Space & Earth / Earth Sciences

created Dec 01, 2009 | popularity 4.3 / 5 (13) | comments 8

Paleoclimate record points toward potential rapid climate changes

(PhysOrg.com) -- New research into the Earth's paleoclimate history by NASA's Goddard Institute for Space Studies director James E. Hansen suggests the potential for rapid climate changes this century, including ...

Space & Earth / Earth Sciences

created Dec 08, 2011 | popularity 4.6 / 5 (11) | comments 2 | with audio podcast

Rising CO2 is causing plants to release less water to the atmosphere, researchers say

As carbon dioxide levels have risen during the last 150 years, the density of pores that allow plants to breathe has dwindled by 34 percent, restricting the amount of water vapor the plants release to the ...

Space & Earth / Earth Sciences

created Mar 03, 2011 | popularity 3.4 / 5 (14) | comments 57 | with audio podcast

Climate experts debate strategies for reducing atmospheric carbon and future warming

(PhysOrg.com) -- Reducing carbon dioxide to safe levels may require extracting carbon from the air, says Cornell climate researcher.

Space & Earth / Environment

created Nov 25, 2009 | popularity 2.7 / 5 (15) | comments 26

Climate change dictated by the ocean

(PhysOrg.com) -- The influence of the world’s oceans over carbon dioxide levels and climate change is better understood thanks to researchers from the University of Canberra and The Australian National ...

Space & Earth / Earth Sciences

created Oct 22, 2010 | popularity 3.6 / 5 (11) | comments 13 | with audio podcast

Arctic studies show dire effect of ocean acidity

The icy Arctic waters around Norway's archipelago of Svalbard may seem pristine and clear, but like the rest of the world's oceans they are facing the threat of growing acidity.

Space & Earth / Earth Sciences

created Jul 26, 2010 | popularity 4.9 / 5 (8) | comments 0

Researchers study potential effects of geoengineering on global food supply

Carbon dioxide emissions from the burning of coal, oil, and gas have been increasing over the past decades, causing the Earth to get hotter and hotter. There are concerns that a continuation of these trends could have catastrophic ...

Space & Earth / Environment

created Jan 22, 2012 | popularity 4.2 / 5 (9) | comments 1 | with audio podcast