It has been suggested that the Earth's temperature requires 25 to 50 years to reach 60% of its equilibrium response. Consequently, if GHG emissions were completely eliminated, warming would still continue for some time.
Since 2001 the University of Michigan’s Center for Sustainable Systems has developed a growing set of factsheets that cover topics including energy, water, food, waste, buildings, materials, and transportation systems. Each factsheet presents important patterns of use, life cycle impacts and sustainable solutions. They are designed to inform policymakers, business professionals, students and teachers. The factsheets are peer-reviewed and updated annually.