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Biofuel breakthroughs bring ‘negative emissions’ a step closer
The use of biofuels helps reduce human greenhouse gas emissions. That’s one reason why some petroleu...
‘Himalayan Viagra’ is threatened by fervent Chinese demand and climate change
At the beginning of the Himalayan summer, when the snows start to melt, all the schools close for th...
How to live with bears
Bears have been on Europeans’ minds lately, as violent encounters with these powerful mammals make i...
In Mexico, a firebrand leftist provokes the powers that be – including Donald Trump
With its 17 million people, Mexico State, which encompasses the outer suburbs of sprawling Mexico Ci...
Caught between police and gangs, Rio de Janeiro residents are dying in the line of fire
In Rio de Janeiro, where murder rates this year have soared to their highest levels in a decade, vio...