![Gretchen Roecker/MEDILL Joerg Schaefer travels far and wide to study climate change and works to reduce his carbon footprint in life every day.](http://climatechange.medill.northwestern.edu/wp-content/uploads/sites/4/2015/02/schaffe2rsmalllll.jpg)
Joerg Schaefer travels far and wide to study climate change and works to reduce his carbon footprint in life every day.
by Megan Taylor Morrison
Oct 06, 2011
Top climate scientists such as Richard Alley and Joerg Schaefer share what they do to reduce their carbon footprints. Individual efforts count in the planet-sized challenge of human-influenced global warming.