The decline in δ13C to a more negative value is not compatible with the idea that fossil fuels are the source of rising methane in the atmosphere.
As the evidence against neonicotinoids rolls in, we will face another challenge between corporate deep pockets and what is good for the natural world.
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