News tagged with carbon emissions
Solar thermal process produces cement with no carbon dioxide emissions
(Phys.org) -- While the largest contributor to anthropogenic greenhouse gas emissions is the power industry, the second largest is the more often overlooked cement industry, which accounts for 5-6% of all ...
Apr 10, 2012 |
4.6 / 5 (25) |
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Computer model used to pinpoint prime materials for efficient carbon capture
When power plants begin capturing their carbon emissions to reduce greenhouse gases – and to most in the electric power industry, it's a question of when, not if – it will be an expensive undertaking.
May 27, 2012 |
5 / 5 (1) |
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Planck mission steps closer to the cosmic blueprint
(PhysOrg.com) -- ESA's Planck mission has revealed that our Galaxy contains previously undiscovered islands of cold gas and a mysterious haze of microwaves. These results give scientists new treasure to mine ...
Feb 13, 2012 |
4.8 / 5 (18) |
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NOAA study suggests aerosols might be inhibiting global warming
(PhysOrg.com) -- A new study led by the U.S, National Oceanic and Atmospheric Administration (NOAA) shows that tiny particles that make their way all the way up into the stratosphere may be offsetting a global ...
Space & Earth / Earth Sciences
Jul 22, 2011 |
4.4 / 5 (17) |
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Ocean's carbon dioxide uptake reduced by climate change
(PhysOrg.com) -- How deep is the ocean's capacity to buffer against climate change? As one of the planet's largest single carbon absorbers, the ocean takes up roughly one-third of all human carbon emissions, ...
Space & Earth / Earth Sciences
Jul 10, 2011 |
4.9 / 5 (12) |
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Global warming pause linked to sulfur in China
Scientists have come up with a possible explanation for why the rise in Earth's temperature paused for a bit during the 2000s, one of the hottest decades on record.
Space & Earth / Earth Sciences
Jul 04, 2011 |
4.1 / 5 (20) |
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Grid realities cancel out some of wind power's carbon savings
(Phys.org) -- Wind energy lowers carbon emissions, but adding turbines to the current grid system does not eliminate emissions proportionally, according to a report by researchers at the Argonne National Laboratory.
Technology / Energy & Green Tech
1 hour ago |
3.3 / 5 (3) |
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Oxygen-separation membranes could aid in CO2 reduction
It may seem counterintuitive, but one way to reduce carbon dioxide emissions to the atmosphere may be to produce pure carbon dioxide in powerplants that burn fossil fuels. In this way, greenhouse gases — once isolated ...
May 15, 2012 |
5 / 5 (2) |
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Measuring CO2 to fight global warming: Scientists develop way to enforce future greenhouse gas treaty
If the world's nations ever sign a treaty to limit emissions of climate-warming carbon dioxide gas, there may be a way to help verify compliance: a new method developed by scientists from the University of ...
May 14, 2012 |
3.2 / 5 (9) |
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Time, place and how wood is used are factors in carbon emissions from deforestation
A new study from the University of California, Davis, provides a deeper understanding of the complex global impacts of deforestation on greenhouse gas emissions.
May 13, 2012 |
5 / 5 (2) |
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Americans support national clean-energy standard: study
The average U.S. citizen is willing to pay 13 percent more for electricity in support of a national clean-energy standard (NCES), according to Yale and Harvard researchers in Nature Climate Change.
Technology / Energy & Green Tech
May 13, 2012 |
3.2 / 5 (9) |
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Resurfacing urban areas to offset 150 billion tons of carbon dioxide
Imagine a world where the rooftops and pavements of every urban area are resurfaced to increase the reflection of the Sun's light rays. Well, this is exactly what a group of Canadian researchers have done ...
Apr 12, 2012 |
4.3 / 5 (12) |
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Study: 800-year-old farmers could teach us how to protect the Amazon
In the face of mass deforestation of the Amazon, we could learn from its earliest inhabitants who managed their farmland sustainably. Research from an international team of archaeologists and paleoecologists, ...
Apr 09, 2012 |
5 / 5 (14) |
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Advanced power-grid research finds low-cost, low-carbon future in West
The least expensive way for the Western U.S. to reduce greenhouse gas emissions enough to help prevent the worst consequences of global warming is to replace coal with renewable and other sources of energy ...
Technology / Energy & Green Tech
Apr 03, 2012 |
4.2 / 5 (14) |
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Where the wild winds blow: Stanford engineers use weather models to site offshore wind farms
(PhysOrg.com) -- Politics aside, most energy experts agree that cheap, clean, renewable wind energy holds great potential to help the world satisfy energy needs while reducing harmful greenhouse gases. Wind ...
Technology / Energy & Green Tech
Apr 03, 2012 |
5 / 5 (1) |
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Greenhouse gas
Greenhouse gases are gases in an atmosphere that absorb and emit radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. Common greenhouse gases in the Earth's atmosphere include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. In our solar system, the atmospheres of Venus, Mars and Titan also contain gases that cause greenhouse effects. Greenhouse gases greatly affect the temperature of the Earth; without them, Earth's surface would be on average about 33°C (59°F) colder than at present.
Human activities since the start of the industrial era around 1750 have increased the levels of greenhouse gases in the atmosphere. The 2007 assessment report compiled by the IPCC observed that "changes in atmospheric concentrations of greenhouse gases and aerosols, land cover and solar radiation alter the energy balance of the climate system", and concluded that "increases in anthropogenic greenhouse gas concentrations is very likely to have caused most of the increases in global average temperatures since the mid-20th century".
For more information about Greenhouse gas, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
