What can a snapshot of virtual water flows tell us about the agricultural sector? Where is it vulnerable? How does it compare to global virtual water trade?
The Southwest and Central Plains are likely to experience conditions that rival the worst droughts of the past 1000 years.
In water scarce regions, the concept of "virtual water" may help communities make tough decisions regarding competing water uses.
Population reduction will likely benefit the planet in the long-term, but can it address our most pressing environmental concerns?
Why recent improvements in air pollution may have shrunk river flows in the northern hemisphere.