Conserving diversity ensures a more productive and stable set of ecosystems on which humans depend.
Enhancement of natural carbon sinks would allow a more orderly withdrawal of fossil fuels from our economy during the next several decades.
Forest biomass is not carbon-neutral in a meaningful time frame.
In the United States, dogs and cats consume the dietary energy of 62 million people, which is about 20% of our population.
The impacts of climate change are likely to cause a 1.2% decline in GDP across the U.S. per one degree rise in temperature (C)
Humans appropriate about 40% of all terrestrial plant production for various purposes
If we are to ensure high quality water, significant effort must be put to managing sources of nitrogen and phosphorus in runoff that reaches the Great Lakes
Ammonia is unregulated, yet it is the cause of poor health and early death in rural agricultural communities.
Throughout human history, the availability of water has determined patterns of human settlements and the success of human endeavor.