Using gravity measurement data from the NASA/German Aerospace Center's Gravity Recovery and Climate Experiment (Grace) mission, a team of scientists found that the East Antarctic ice sheet may have begun to lose ice.
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our model indicates that the impact of twentieth-century warming on sea level will continue for many centuries into the future
As global temperatures increase, the potential for longer growing seasons to
enhance the terrestrial carbon sink has been proposed as a mechanism to reduce
the rate of further warming. At the Niwot Ridge AmeriFlux site, a subalpine
forest in the Colorado Rocky Mountains, we used a 9-year record (1999–2007) of
continuous eddy flux observations to show that longer growing season length
(GSL) actually resulted in less annual CO2 uptake.
abstract
computer modeling of the cooling suggests that the cooling was caused by a reduction of greenhouse gases in the atmosphere
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The new data continues the global trend in accelerated ice loss over the past few decades
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Any increase in dead zones from global warming will last for thousands of years. They will be a permanent fixture ... In the worst-case scenario, dead zones could encompass more than a fifth of the world's oceans
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climate change that takes place due to increases in carbon dioxide concentration is largely irreversible for 1,000 years after emissions stop
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all our simulations have a very small probability of warming less than 2.4°C, the lower bound of the IPCC AR4 projected likely range
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Greenhouse gases play an important role in North American climate ... More than half of this warming is likely the result of human-caused greenhouse gas forcing of climate change
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press release
The rate of warming we are seeing is unprecedented in human history.
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None of the natural processes can account for the overall warming trend in global surface temperatures ... solar forcing contributed negligible long-term warming in the past 25 years and 10% of the warming in the past 100 years
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Avoiding environmental damage from ocean acidification requires reductions in
carbon dioxide emissions regardless of climate change.
Study
atmospheric carbon dioxide is strongly correlated with Antarctic temperature throughout eight glacial cycles
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formally links observed global changes in physical and biological systems to human-induced climate change, predominantly from increasing greenhouse gases
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