Climate Change Response, environmental science homework help

Some people you know say they don’t believe that the climate is changing. After this week’s readings, how would you respond?
Write a 525- to 700-word response including:

How scientists learn about past global temperatures and climates.
The greenhouse effect.
Greenhouse gases and their role in current climate change.
One piece of data scientists offer to show that the climate is changing globally (see this NASA website: http://climate.nasa.gov/evidence/ ).
Expected impacts of climate change in your area (this EPA website is very helpful: www3.epa.gov/climatechange/impacts/).

Include two outside references.
Format your paper consistent with APA guidelines.