University of Wisconsin–Madison

Tag: planetary boundaries

From Supporting Actor to Star: Will Ecology Take the Lead Role in Future Climate Conferences?

by Steve Carpenter If climate change was the star of the recently concluded Paris Climate Conference (COP21), ecology played a key supporting role. At COP21, 195 nations agreed to hold global warming below 2 degrees Celsius (3.6 degrees Fahrenheit) and, by 2050, to reduce emissions of heat-trapping greenhouse gases to a level that land and …

Humanity Crosses 4 of 9 ‘Planetary Boundaries,’ Q&A with Steve Carpenter

The journal Science published an article online today that says civilization has crossed four of nine “planetary boundaries” due to human activity.  According to an international team of 18 researchers, climate change, the loss of biosphere integrity, land-system change, and altered biogeochemical cycles (like phosphorus and nitrogen runoff) have all passed beyond levels that put humanity in a “safe …