It is “not sufficient to look at history for lessons on how we should prepare for and prevent future security risks in a climate change world,” said Swathi Veeravalli, research scientist at the U.S. Army Corps of Engineers’ Geospatial Research Laboratory, at the Wilson Center on January 14. Climate change and the extreme weather events it brings pose an “unprecedented” threat to human security. [Video Below]

The good news is that some of the big land deals reported in Africa after the 2007-08 food crisis may have evaporated once companies realized the precarious land and legal frameworks they were stepping into. The bad news is that small farmers don’t have the same luxury, writes Landesa CEO Chris Jochnick in last month’s most-read story.

Patterns of trade and consumption in the global food system are shifting. In the past, most trade in agricultural commodities occurred between developed and developing countries. But, in recent years, the volume of South-to-South trade has increased significantly. Today, some of the most problematic crops in terms of their effect on the environment, such as soy and palm oil, are predominantly traded amongst developing and fast-rising countries.

In December 2015, Beijing issued its first-ever “red alert” for smog, its highest air pollution warning, which closed schools and restricted the number of cars on the road. Less than two weeks later, it issued its second.

Around the world, urbanization and climate change are transforming societies and environments, and the stakes could not be higher for the poor and marginalized. The 2015 UN climate conference in Paris (COP-21) highlighted the need for coordinated action to address the profound injustice of the world’s most disadvantaged people bearing the greatest costs of climate impacts. Among those at the COP were mayors from around the world advocating for the important role of cities in these efforts.

The government of El Salvador took a truly extraordinary step in an attempt to control the rapidly spreading Zika virus last week by asking its citizens to avoid getting pregnant from now until 2018. Yes, you read that right.