Sentences with phrase «greenhouse gas emissions from human activities warming»

Not exact matches

Global warming became big news for the first time during the hot summer of 1988 when now - retired NASA climate scientist James Hansen testified before Congress that the trend was not part of natural climate variation, but rather the result of emissions of CO2 and other greenhouse gasses from human activities.

Mr. McCain has been an interesting voice on global warming, given that he broke with President Bush and most of his party years ago, acknowledging that the buildup of greenhouse gases from human activities was risky and mandatory steps were needed to curb emissions.

«The verdict is in: Global warming is real and greenhouse - gas emissions from human activity are the main cause.

But the IPCC concerns itself with consideration of anthropogenic (i.e. man - made) global warming (AGW) as a result of emissions of greenhouse gases (notably carbon dioxide, CO2) from human activities.

Scientists say that the world is currently undergoing warming due to carbon and other greenhouse gas emissions from human activities, such as burning fossils, deforestation, and land use changes.

The experts say their research DOES NOT UNDERMINE THE SCIENTIFIC CONSENSUS THAT EMISSIONS OF GREENHOUSE GASES FROM HUMAN ACTIVITY DRIVE GLOBAL WARMING, BUT THEY CALL FOR A CLOSER EXAMINATION OF THE WAY CLIMATE COMPUTER MODELS CONSIDER WATER VAPOUR.

The warming of the Earth is largely the result of emissions of carbon dioxide (CO2) and other greenhouse gases from human activities.

Greenhouse gas (GHG) emissions from human activity and livestock are a significant driver of climate change, trapping heat in the earth's atmosphere and triggering global warming.

The planet is warming because of the growing level of greenhouse gas emissions from human activity.

Unfortunately for the EPA, a major pillar of support of the Endangerment Finding — that «most» of the «observed warming» since the mid-20th century is from greenhouse gas emissions from human activities — has been shown by recent scientific research in major peer - reviewed scientific journals to be largely in doubt.

This warming is largely the result of emissions of carbon dioxide and other greenhouse gases from human activities... — Global Warming Basics World Wildliwarming is largely the result of emissions of carbon dioxide and other greenhouse gases from human activities... — Global Warming Basics World WildliWarming Basics World Wildlife Fund

In terms of greenhouse agents, the main conclusions from the WGI FAR Policymakers Summary are still valid today: (1) «emissions resulting from human activities are substantially increasing the atmospheric concentrations of the greenhouse gases: CO2, CH4, CFCs, N2O»; (2) «some gases are potentially more effective (at greenhouse warming)»; (3) feedbacks between the carbon cycle, ecosystems and atmospheric greenhouse gases in a warmer world will affect CO2 abundances; and (4) GWPs provide a metric for comparing the climatic impact of different greenhouse gases, one that integrates both the radiative influence and biogeochemical cycles.

The scientific consensus is that greenhouse gas (GHG) emissions from human agricultural and industrial activity are the principal cause of this global warming [1]--[3] and that such emissions must be severely curtailed to prevent further anthropogenic disruption of the climate system [4].