Sentences with phrase «trapped by greenhouse gas emissions»

More than 90 percent of the excess heat trapped by greenhouse gas emissions has been absorbed into the oceans that cover two - thirds of the planet's surface.

Not exact matches

Of course, the extra heat trapped by human greenhouse gas emissions is likely to play a bigger role than raindrop friction in any atmospheric changes.

Most of the heat being trapped at the Earth's surface by human greenhouse gas emissions is absorbed by the oceans.

Results: The least costly way to manage the heat - trapping effect of greenhouse gases in the atmosphere is to pursue every available option to reduce emissions, according to a study by Pacific Northwest National Laboratory, published in the journal Climatic Change.

There are also concerns that oceans, which currently absorb more than 90 percent of the extra heat being trapped by human greenhouse gas emissions, could eventually release some of that back to the surface, speeding up the surface temperature rise.

That the threat posed by the buildup of heat - trapping greenhouse gases in the atmosphere from human activities is sufficient to justify a concerted, sustained effort to curb, and eventually deeply cut, such emissions.

The best approach — the «safest and most predictable,» the report says — would be to avoid the need for geoengineering in the first place by drastically reducing emissions of heat - trapping greenhouse gases.

On Sunday, the new president of the island nation, Mohamed Nasheed, prodded the world to get serious about cutting emissions of heat - trapping greenhouse gases by pledging, in a short piece in England's Observer newspaper, to make the Maldives the first carbon - neutral country within a decade:

That's because, as Figure 1 demonstrates, the excess heat trapped by human greenhouse gas emissions is primarily stored in the ocean.

Targets and timetables - A target is the reduction of a specific percentage of heat - trapping gas (greenhouse gas) emissions from a baseline date (e.g., below 1990 levels) to be achieved by a set date or timetable (e.g., 2030).

► Technical potential is the amount by which it is possible to reduce heat - trapping gas (greenhouse gas) emissions or improve energy efficiency by implementing a technology or practice that has already been demonstrated.

The reduction of heat - trapping gas (greenhouse gas) emissions is stimulated by lowering existing subsidies that have the effect of raising emissions (such as subsidies to fossil fuel use) or by providing subsidies for practices that reduce emissions or enhance sinks (e.g. for insulation of buildings or for planting trees).

Dr. Theodore A. Scambos, a glaciologist at the National Snow and Ice Data Center at the University of Colorado, said the long life of Larsen B «makes you think there's something particularly unusual about this warming» — perhaps evidence that the warming has been brought on by artificial emissions of carbon dioxide and other greenhouse gases that trap heat in the atmosphere.

Kilimanjaro's majestic glacial cap of 11,000 - year - old ice has long captured imaginations the world over, so it was not surprising that environmentalists focused their attention on it when scientists reported in 2001 that glaciers around the world were retreating, partly as a result of global warming caused by emissions of heat - trapping «greenhouse» gases from smokestacks and tailpipes.

Both wetland drying and the increased frequency of warm dry summers and associated thunderstorms have led to more large fires in the last ten years than in any decade since record - keeping began in the 1940s.9 In Alaskan tundra, which was too cold and wet to support extensive fires for approximately the last 5,000 years, 105 a single large fire in 2007 released as much carbon to the atmosphere as had been absorbed by the entire circumpolar Arctic tundra during the previous quarter - century.106 Even if climate warming were curtailed by reducing heat - trapping gas (also known as greenhouse gas) emissions (as in the B1 scenario), the annual area burned in Alaska is projected to double by mid-century and to triple by the end of the century, 107 thus fostering increased emissions of heat - trapping gases, higher temperatures, and increased fires.

Countries included in Annex B of the Protocol (most Organization for Economic Cooperation and Development countries and countries with economies in transition) agreed to reduce their human - induced heat - trapping gas (greenhouse gas) emissions (carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride) by at least 5 % below 1990 levels in the commitment period 2008 to 2012.

If emissions of heat - trapping greenhouse gases continue on their current track, that ratio could become even more skewed, potentially reaching 15 - to - 1 by midcentury, a new study finds.

A 2005 executive order requires California to reduce its emissions of heat - trapping greenhouse gases — including carbon dioxide, methane, nitrous oxide and hydrofluorocarbons — to 80 percent below 1990 levels by 2050.

Although many want to prevent these shifts by reducing emissions of greenhouse gases that trap heat from the sun, some controversially suggest deliberating manipulating the planet's climate with large - scale engineering projects, commonly called geoengineering.