Sentences with phrase «total emissions from human activities»

(04/23/2009) Fire accounts for roughly half of greenhouse gas emissions from deforestation and about twenty percent of total emissions from human activities, report researchers writing in the journal Science.

Not exact matches

The region locks up more than 100 billion tons of carbon — more than 11 years» worth of total greenhouse gas emissions from human activities; plays an important role in global weather circulation patterns, including delivering rainfall to Central America, the United States, and southern South America; supports perhaps a third of terrestrial biodiversity; and is home to the bulk of the world's remaining indigenous people still living in traditional ways.

But the sector is also responsible for the emissions that come from the use of their products — in total, around 44 percent emitted by human activity in the United States.

Of the world's total carbon dioxide emissions only a small fraction comes from the activities of human beings, but it is that small fraction that might threaten the equilibrium between the much greater flows.

That is just 1 percent of the total carbon dioxide emissions which come from all human activity.

Fossil fuels supplied about 81 % of the primary energy consumed in the United States and were responsible for about 93 % of total U.S. carbon dioxide emissions from human activity in 2015.

Globally, over 60 percent of total CH4 emissions come from human activities.2 Methane is emitted from industry, agriculture, and waste management activities, described below.