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Punching Holes in the Sky
Topic: Climate
07/13/11
Summary: New research is shedding light on how 'hole punch' clouds are formed. The study could help explain local weather phenomenon, such as increased precipitation around major airports.

Ocean Causes Abrupt Climate Change
Topic: Climate
06/22/11
Summary: New research supports theories that abrupt climate change can result from alterations in ocean circulation.

Today's Carbon Release Exceeds Earth's Last Hot Era
Topic: Climate
06/08/11
Summary: A new study shows that carbon is being released into the atmosphere today at a rate that is 10 times faster than during the Paleocene-Eocene Thermal Maximum. This period, 55.9 million years ago, is the best analog we have for understanding current global warming on Earth.

Ocean 'Mixmaster' Moves Global Climate
Topic: Climate
05/29/11
Summary: In the Eocene, temperature differences between the equator and the Antarctic were half of what they are today. New research shows that the Antarctic Circumpolar Current (ACC) likely played a key role in this major shift from the more tropical, greenhouse climate to much cooler modern climates.

Extreme Earth: Waves of Water, Wind and Heat
Topic: Climate
05/09/11
Summary: Research shows that increasing wind speeds and wave heights could be linked to climate change. However, not all recent and extreme weather events are due to changing climate. A separate study indicates that the record heat in Russia recorded in 2010 was a fluke, and unrelated to climate trends.

The Secrets of the Rain
Topic: Climate
04/28/11
Summary: By flying aircraft into and above rain clouds, scientists from NASA and other organizations are trying to understand why certain clouds produce copious amounts of rain.

The Mystery of an Ancient Global Warming Recovery
Topic: Climate
04/26/11
Summary: A new study indicates that the Earth could recover from rising CO2 emissions faster than previously thought. Fifty-six million years ago, during a period of rising temperatures and atmospheric CO2, the Earth increased its ability to pull carbon from the air and sped up the planet's recovery.

Turning Up the Gas
Topic: Climate
04/25/11
Summary: Greenhouse gases have increased more frequently in Earth's history than previously believed. Fluxes involved a significant exchange of carbon between surface reservoirs and the atmosphere. Higher levels of CO2 affect nutrient uptake by planets, which could cause problems as the modern climate continues to heat up.

Pulling Back the Sheets
Topic: Climate
04/11/11
Summary: A new study shows that melting ice sheets in Greenland and Antarctica are contributing more to rising sea levels than other sources, such as mountain glaciers and ice caps. Studying these sheets is important, because if they collapse they could dramatically change the level of the oceans globally.

Ancient Hyperthermals
Topic: Climate
03/28/11
Summary: Intense global warming may have occurred more frequently in Earth's past than previously believed. New research shows that release of carbon dioxide from the deep oceans could have triggered these ancient 'hyperthermal' events.

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