The City of Port Townsend, Washington tourism guide. Learn about things to do when visiting and the history of Port Townsend with our guide of the city and surrounding area.
Learn more about how climate change will affect people and the environment in the following ways: 1  Agriculture. 2  Energy. 3  Water Supplies. 4  Health. 5  Plants, Animals, and Ecosystems. 6  Forests. 7  Recreation.
Humans affect Earth's climate through many mechanisms by changing the abundance of greenhouse gases and air pollutants, and by altering the reflectivity of Earth's surface through changes in land use.