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Greenhouse gases at record high, warns UN

Last Updated: Wednesday, November 21, 2012, 09:35

Concentration level of carbon dioxide, the key global warming pollutant in the atmosphere touched a record high level in the air in 2011, the UN weather agency said Tuesday.

Geo-engineering could offset warming effects

Last Updated: Monday, October 22, 2012, 15:19

A team of leading researchers from the Harvard School of Engineering and Applied Sciences have developed a unique process to offset global warming caused by greenhouse gases.

Sun blocking only needed if Earth warms easily with added greenhouse gases

Last Updated: Friday, October 12, 2012, 14:23

Some scientists are studying ways to temporarily reduce the amount of sunlight reaching the earth to potentially stave off some of the worst effects of climate change.

Algal oil answer to dwindling fuel reserves

Last Updated: Saturday, July 21, 2012, 09:20

Algal oils could be a sustainable solution to dwindling fuel reserves, says a researcher.

Greenhouse gases may have loaded early atmosphere

Last Updated: Thursday, March 29, 2012, 13:23

Ancient Earth may have been warmed by the presence of green house gases, which made life possible on our planet, a new study including Indian origin scientist has suggested.

Weaker sun will not delay global warming: Study

Last Updated: Tuesday, January 24, 2012, 08:21

A weaker sun over the next 90 years is not likely to significantly delay a rise in global temperature caused by greenhouse gases, a report said Monday.

Scientists say cut soot, methane to curb warming

Last Updated: Friday, January 13, 2012, 08:48

An international team of scientists says it has figured out how to slow global warming in the short run and prevent millions of deaths from dirty air: Stop focusing so much on carbon dioxide.

Global warming likely to delay next ice age

Last Updated: Monday, January 09, 2012, 12:27

Researchers have warned that unprecedented levels of greenhouse gases in the Earth’s atmosphere are disrupting normal patterns of glaciation.

Thawing permafrost vents gases to worsen warming

Last Updated: Thursday, December 01, 2011, 10:10

Those heat-trapping gases under the frozen Arctic ground may be a bigger factor in global warming than the cutting down of forests.

`Sorghum capable of mitigating global warming impact`

Last Updated: Sunday, November 27, 2011, 14:08

Scientists have found that sorghum varieties are capable of mitigating impact of global warming.

Greenhouse gases soar; no signs warming is slowed

Last Updated: Tuesday, November 22, 2011, 10:04

Heat-trapping greenhouse gases in the atmosphere are building up so high, so fast, that some scientists now think the world can no longer limit global warming to the level world leaders have agreed upon as safe.

Thawing arctic soil may release greenhouse gases

Last Updated: Monday, November 07, 2011, 13:12

The frozen soil between the North Pole and the Arctic Ocean locks up 1,672 billion tonnes of greenhouse gases which may be released as the temperature in the Arctic rises.