White House tackles HFC emissions to slash global warming

The Obama administration today said it will slash emissions of hydroflourocarbons (HFCs), a potent greenhouse gas used to fuel refrigerators and air conditioners that contributes to global warming.

White House warns climate inaction could cost US billions

Delaying efforts to reduce greenhouse gas emissions could cost the US USD 150 billion per year, the White House warned today in a report on the economic consequences of inaction on climate change.

Increase in atmospheric moisture tied to human activities

Human activities are directly responsible for rising levels of atmospheric water vapour, the most abundant greenhouse gas and a key driver of global warming, scientists say.

NASA to launch satellite to track carbon pollution

The US space agency is to launch on Tuesday a satellite that tracks atmospheric carbon dioxide, a leading greenhouse gas that contributes to global warming.

Amazon forests inhale more carbon dioxide than they emit: NASA study

In a finding that is seen as a significant factor in reducing global warming, a new NASA-led study confirmed that natural forests in the Amazon remove more carbon dioxide from the atmosphere than they emit.

Components of Venus` acidic cloud cover identified

A team of researchers used rainbow-like light phenomenon observed on Venus cloud tops to identify the components of the planet`s acidic cloud cover.

Climate risk from wind farms is minimal: Study

Concerns that giant wind farms aimed at easing climate change in fact aggravate the problem are misplaced, a scientific study said today.

Europe`s 2030 climate plan draws mixed response

Environment watchdogs rejected Europe`s 2030 greenhouse gas-curbing plan as inadequate today but the UN climate chief hailed it as a "positive" step towards a new international pact against global warming.

New greenhouse gas has higher global warming impact than CO2

A long-lived man-made greenhouse gas that appears to have the highest global-warming impact of any compound to date has been discovered.

US emitting 50% more methane than EPA calculations: Study

The emissions of methane in the United States may be 50% more than the indicated estimates by the US Environmental Protection Agency (EPA), says a new study on Monday.

Carbon dioxide could warm Earth for centuries

Even if carbon dioxide emissions came to a sudden halt, the greenhouse gas already present in the Earth`s atmosphere could continue to warm our planet for hundreds of years, a new study has found.

UN talks limp towards global 2015 climate deal

Almost 200 countries on Saturday kept alive hopes for a global deal in 2015 to fight climate change after overcoming disputes on greenhouse gas emissions cuts and aid for poor nations at a meeting widely criticised as lacking urgency.

Greenhouse gas in atmosphere hits new record: UN

The amount of greenhouse gases in Earth`s atmosphere hit a new record high in 2012, continuing an ever-faster rise that is driving climate change, the UN weather agency said Wednesday.

Climate models over predicted global warming

A new study has revealed that out of 117 predictions, made in the 1990`s to the actual amount of warming, three were roughly accurate and 114 overestimated the amount of warming.

How to turn carbon dioxide from burning fossil fuel back into fuel

Scientists are now looking at new ways to turn the tables on the No. 1 greenhouse gas and convert carbon dioxide back into fuel.

Greenhouse gas `altering` ocean food chain

Increasing levels of carbon dioxide in the atmosphere could be weeding out the bacteria that form the base of the ocean`s food chain and selecting certain strains for survival, a new study has suggested.

Practical policy changes can help reduce greenhouse gas

Cities across the globe can significantly reduce greenhouse gas emissions by implementing aggressive, but practical policy changes, a new study has said.

Wick lamps too account for huge carbon levels

Smoke emitted by simple wick lamps is also churning out carbon levels overlooked in greenhouse gas emissions, says a study.

UN climate change summit: `Time is running out`

In Doha, delegates from over 190 countries gathered for discussions on major issues relating to global anti-warming efforts.

Carbon buried in soil by erosion may rise again after 500 years

Scientists have identified a source of carbon emissions that could play a role in understanding past and future global change.