6. Read: http://www.ncdc.noaa.gov/oa/climate/globalwarming.html and answer the following; use the research from NOAA to support your answers. 1) What causes climate change? 2) Is human activity contributing to climate change? 3) Is the climate warming? 4) If global warming is real, why has the East Coast of the USA been hit with massive blizzards the last two years?

1) What causes climate change? Cloud cover, atmospheric water vapor, land use and urban effects

2) Is human activity contributing to climate change? Yes, they increase the amount of  greenhouse gases.

3) Is the climate warming? Yes in some areas

 4) If global warming is real, why has the East Coast of the USA been hit with massive blizzards the last two years? Summers are warmer, and winters are colder.