One fear of climate change is that more variable weather conditions will lead to violence and chaos in some places. But looking at it methodically, do erratic weather conditions actually lead to violent conflict and political instability? Not necessarily.

The eye catching headlines are familiar. “Water Wars” are imminent or already underway in the latest drought or dam-building hotspot. Such “wars” often extend to farmers battling over irrigation diversions, but at times countries are the players. Senior leaders are often quoted suggesting transboundary water theft constitutes a casus belli. Security officials are obliged to investigate.

As bad news continues to roll in regarding the accelerating impacts of greenhouse gases accumulating in the atmosphere, there is increasing discussion about imposing a carbon tax. Economists across the political spectrum support it, from Irwin Seltzer’s camp that remains “uncertain as to whether there is a global warming phenomenon” to William Nordhaus, who unequivocally views climate change as a threat.

In the late 1990s, world leaders came together to create the Millennium Development Goals – time-bound, quantified targets for addressing extreme poverty and human health and well-being. Notable among them was to “halve, by 2015, the proportion of the population without sustainable access to water and sanitation.”

Today, as El Niño-related droughts impact communities across East and Southern Africa, food aid shipment and distribution networks have shifted into high gear. From the U.S. Agency for International Development to the United Nations World Food Program and NGOs like CARE and Save the Children, food aid providers are stocking port warehouses in Djibouti and South Africa, as well as inland warehouses in countries like Ethiopia, Zimbabwe, and Lesotho.

“There are truly global-scale environmental challenges, and they need to be dealt with by thinking of solutions at the same scale,” said Thomas Lovejoy, a senior fellow at the United Nations Foundation, at the Wilson Center on June 29. The interaction between human population and environmental degradation is one of these challenges. [Video Below]

Maternal and fetal health is at the forefront of concerns about the spread of Zika. The fetal brain defects known to be linked to the virus are devastating – and may only be the tip of the iceberg in terms of the virus’s impact, according to a panel of high level U.S. government officials speaking at the Wilson Center on May 24.

At USAID we recognize the threat poor sanitation combined with rapid urbanization presents to human health, dignity, and prosperity. This is why we have made urban sanitation a global priority for the Agency. During a recent visit to India, I was able to see some of the work being done to bring sanitation services to urban areas, and had the good fortune to meet some inspiring women who are advancing these efforts in their communities.