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: