The Pope calls for serious and immediate action to address climate change and other environmental crises.
The day addresses drought and desertification, and is meant to help implement the UN Convention to Combat Desertification.
It is recognized by an increasing number of countries as an opportunity to celebrate our world ocean and our personal connection to the sea.
Monsanto's glyphosate, sold as "roundup," is the most widely-used herbicide. In Colombia, however, it's also a weapon of war.
Cuba is breaking new ground in production yields, organic farming techniques, sustainability, and food security.
It's among the universe's first generation of galaxies, from 13.1 billion years ago.
These negotiations take place against the backdrop of increasingly dire predictions about the results of climate change. 2014 was the hottest year on record.
In a recent column, I discussed my pick for the top 10 environmental stories of 2014; that got me to thinking about the coming year.
Developments in 2014 make clear that the impacts of climate change are going to continue to grow, and the struggle to address this will intensify.
Canarians and tourists formed a giant 'SOS' on a beach in Spain's Canary Island of Fuerteventura protesting oil drilling.