Farm ..................pollute the air

Melting ................. early snowmelt, and severe droughts will cause more dramatic water shortages and increase the risk of wildfires

the decrease or depletion of forests are called ......................

....................occurs when carbon dioxide (CO2) and other air pollutants and greenhouse gases collect in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth’s surface.

he natural warming of the earth that results when gases in the atmosphere trap heat from the sun that would otherwise escape into space.

Sunlight makes the earth ...............

Since the start of the Industrial ????, more than 2,000 billion tons of carbon dioxide have been released into the atmosphere by human activities

In recent years, ...................has taken the lead in global-warming pollution, producing about 28 percent of all CO2 emissions

Every human being has to take..................against climate change.

...................comes in second in global warming pollution.

In the United States, the burning of ......................... to make electricity is the largest source of heat-trapping pollution, producing about two billion tons of CO2 every year

We should encourage people to use.................energy sources.