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Taking Measure of the Greenhouse Effect

By Guest PostOctober 15, 20101 commentEnvironment, Scienceaerosols, andrew lacis, atmosphere, carbon dioxide, climate change, climate models, climate science, clouds, CO2, CO2 emissions, computer simulations, earth, gases, gavin schmidt, goddard institute for space studies, greenhouse effect, greenhouse gases, heat-absorbing components, heat-trapping gas, methane, mining activities, NASA, nitrous oxide, ozone, planet, reto ruedy, ron miller, trace gases, water vapor

WASHINGTON — Scientists have long known that heat-absorbing components of Earth’s atmosphere, such as clouds and certain gases, prevent our planet from being an ice-covered ball. Now a study, for the first time, comprehensively calculates the relative contributions of the components responsible for that heating, known as the greenhouse effect.

Besides clarifying an important aspect of climate science, the study also demonstrates that rising concentrations of one heat-trapping gas — carbon dioxide — leads to much more greenhouse warming than just the heat the gas absorbs directly itself.

Various studies have looked at the contributions of water vapor, CO₂, and other greenhouse gases. But none had systematically estimated the contributions of each of the main players, says climate scientist Gavin Schmidt of NASA Goddard Institute for Space Studies, and lead author of the new research. (more…)

Arctic Sea Ice Reaches Lowest 2010 Extent, Third Lowest in Satellite Record

By Guest PostSeptember 17, 2010Environmentarctic sea, atmosphere, earth, greenhouse gases, ice, NASA, natural climate, satellites, serreze, shrinking arctic sea ice, snow and ice data center, university of colorado at boulder

The Arctic sea ice cover appears to have reached its minimum extent for the year, the third-lowest recorded since satellites began measuring sea ice extent in 1979, according to the University of Colorado at Boulder’s National Snow and Ice Data Center.

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First-of-Its-Kind Map Details the Height of the Globe’s Forests

By Guest PostJuly 21, 20101 commentEnvironment, Scienceaqua, atmosphere, canopy, carbon cycles, carbon dioxide, desdynI, douglas fir, ecosystems, height of the world’s forests, icesat, imaging spectrodiometer, lidar, michael lefsky, modis, NASA, richard Houghton, satellite data, satellites, tallest forests, terra, tropical rain forests, woods hole research center

WASHINGTON — Using satellite data, scientists have produced a first-of-its kind map that details the height of the world’s forests. Although there are other local- and regional-scale forest canopy maps, the new map is the first that spans the entire globe based on one uniform method.

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University of Washington’s institute to get as much as $100 million to study atmosphere, ocean

By Guest PostJune 15, 20101 commentEnvironmentaerosols, atmosphere, atmospheric particles, climate and its impacts, college of the environment, dennis hartmann, environmental challenges, joint institute for the study of the atmosphere and oce, low oxygen, marine ecosystems, national oceanic and atmospheric administration, noaa, ocean, ocean acidification, pacific northwest, polar regions, puget sound, thomas ackerman, tsunami, university of washington

The National Oceanic and Atmospheric Administration has selected the University of Washington as a key partner for expanded, in-depth study of some of the most pressing environmental challenges involving the oceans and the atmosphere.

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Plant’s role in global warming

By Guest PostApril 30, 2010Environment, Scienceandy mcleod, atmosphere, Bangladesh, campus, carbon dioxide, earth, forestry and agriculture, global warming, methane, moulana bhashani science and technology university, ozone, percent of earth’s emission, plants, santosh, school of geosciences, tangail, university of edinburgh

Plants remain an effective way of tackling global warming despite emitting small amounts of an important greenhouse gas, a study has shown.

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Tag Archives: atmosphere

Taking Measure of the Greenhouse Effect

Arctic Sea Ice Reaches Lowest 2010 Extent, Third Lowest in Satellite Record

First-of-Its-Kind Map Details the Height of the Globe’s Forests

University of Washington’s institute to get as much as $100 million to study atmosphere, ocean

Plant’s role in global warming