A four-part video series produced by the Kenya Broadcasting Corporation (KBC) and supported by the Fund for Investigative Journalism gives an update on the beleaguered communities of Lake Turkana, the world’s largest desert lake that supplies vital ecosystem services and livelihoods to 300,000 people in northwestern Kenya. The lake is fed entirely by the Omo River, flowing south from Ethiopia, but a newly completed upstream dam has raised questions about the future.

Migration is an important strategy for coping with environmental variability and change, but it can also place additional stress on ecosystems. Policymakers and practitioners are not always fully aware of these threats, nor fully prepared to manage them through appropriate interventions. Conservation professionals in the field therefore have a key role to play in reducing the harmful impacts that migration can have on the environment, and in mitigating any tensions that may emerge between migrant and host communities.

Since its adoption after COP-21 in December 2015, the Paris Agreement has received mixed reviews. Some stakeholders, mostly industrialized countries, see the climate deal as a success. Developing countries have generally been more cautiously optimistic, welcoming the agreement as the best option under the circumstances.

In a study published in Science Advances, Mesfin M. Mekonnen and Arjen Y. Hoekstra estimate that over 4 billion people, approximately two-thirds of the world’s population, face severe water scarcity for at least one month out of the year – far greater than previous estimates of between 1.7 billion and 3.1 billion. The authors examined global water scarcity data from 1996 to 2005 on a monthly basis and at a more localized resolution to show how water scarcity affects different places at different times of year.

If you Google “arcane bureaucratic tool” the Department of Defense Directive (DODD) should be high on the results list. That said, these little-known directives can be very influential in how the Pentagon conducts its day-to-day business. Late last week, Deputy Secretary of Defense Robert Work signed out a DODD that may just be the most meaningful climate-related document the Department of Defense has released.

China’s “strictest air protection law” yet took effect on January 1, 2016, promising to bring big changes to its smog-filled cities. But some municipal governments have been ahead of the curve, working to clean up the air through experimentation and innovation. Shenzhen, China’s first special economic zone and which recently passed its neighbor Hong Kong to lead China’s most competitive cities, is one of these.

The year is 2022. Strong El Niño and La Niña events in successive years have drastically reduced wheat yields in India and Australia and increased the range of certain pests and plant pathogens in the Western Hemisphere. Moreover, a drought across North America has reduced corn and soybean yields significantly. Global commodity prices are up 262 percent over long-term averages. These price increases are compounding other social and economic challenges, contributing to social unrest in several food-importing nations.

Climate change is the world’s greatest environmental threat. It is also increasingly understood as a threat to domestic and international peace and security – recognized by the Department of Defense as a “threat multiplier,” by Secretary of State John Kerry as “perhaps the world’s most fearsome weapon of mass destruction,” and by President Obama, in an address to graduates of the United States Military Academy, as “a creeping national security crisis.” The Supreme Court’s temporary blocking of the Clean Power Plan highlights the Federal-State divide over how to address climate change, but because of its national security dimension, climate change also raises unique separation of powers issues between the president and Congress with regard to how the military can respond.