Earth's history sends climate warning
A new study of historical carbon dioxide levels stresses urgent action is needed to avoid prehistoric levels of climate change.
Earth Sciences
Jun 1, 2021
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Page 2 - News tagged with co2 levels
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climate change
Research shows global photosynthesis on the rise
Plant photosynthesis was stable for hundreds of years before the industrial revolution, but grew rapidly in the 20th century, according to new research published today in Nature.
Environment
Apr 5, 2017
7
702
Greenland's ice melted away at least once in last million years
The ice sheet atop Greenland —which holds enough frozen water to swamp coastal cities worldwide—has melted to the ground at least once in the last million years despite CO2 levels far lower than today, stunned scientists ...
Earth Sciences
Mar 17, 2021
12
1034
Sea urchins cope with rising CO2 levels
(Phys.org) —Increasing levels of carbon dioxide (CO2) in the atmosphere are causing oceans to become more acidic. This situation poses a threat to marine organisms with shells made of calcium carbonate, because acid will ...
Solving the mystery of why atmospheric carbon dioxide was lower during ice ages
Since scientists first determined that atmospheric carbon dioxide (CO2) was significantly lower during ice age periods than warm phases, they have sought to discover why, theorizing that it may be a function of ocean circulation, ...
Earth Sciences
Jun 13, 2019
4
562
Rising CO2 causes more than a climate crisis—it may directly harm our ability to think
As the 21st century progresses, rising atmospheric carbon dioxide (CO2) concentrations will cause urban and indoor levels of the gas to increase, and that may significantly reduce our basic decision-making ability and complex ...
Environment
Apr 21, 2020
51
2924
Rising CO2 leading to changes in land plant photosynthesis
Researchers led by Scripps Institution of Oceanography at the University of California San Diego have determined that major changes in plant behavior have occurred over the past 40 years, using measurements of subtle changes ...
Environment
Sep 11, 2017
0
832
Global warming reduces protein in key crops: study
Rising carbon dioxide levels from global warming will drastically reduce the amount of protein in staple crops like rice and wheat, leaving vulnerable populations at risk of growth stunting and early death, experts warned ...
Environment
Aug 2, 2017
6
1022
Fossil leaves show high atmospheric carbon spurred ancient 'global greening'
Scientists studying leaves from a 23-million-year-old forest have for the first time linked high levels of atmospheric carbon dioxide with increased plant growth, and the hot climate off the time. The finding adds to the ...
Earth Sciences
Aug 20, 2020
16
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High CO2 boosts plant respiration, potentially affecting climate and crops
The leaves of soybeans grown at the elevated carbon dioxide (CO2) levels predicted for the year 2050 respire more than those grown under current atmospheric conditions, researchers report, a finding that will help fine-tune ...
Earth Sciences
Feb 9, 2009
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