Yesterday afternoon President Obama announced a new Presidential Memorandum on climate change and national security. The policy directs 20 federal agencies to consider the national security implications of climate change and establish a working group that will develop a Climate Change and National Security Action Plan for the federal government.

The idea that climate change is causing migration and displacement is entering the mainstream, but experts have warned against using the term “climate refugees” to describe what we’re seeing in small islands, coastal regions, and even conflict zones like Syria.

Though governments have agreed to try to limit global warming to no more than two degrees Celsius above pre-industrial levels, a paper by James Hansen et al. in Atmospheric Chemistry and Physics finds that goal may not prevent major changes on an irreversible and unadaptable scale. Studying the last interglacial period, about 120,000 years ago, when the temperature was less than one degree Celsius warmer than today, Hansen et al. estimate sea level was six to nine meters higher than today.

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.

In November 2015, experts from a variety of fields gathered at the Peace Palace in The Hague for the Planetary Security Conference, one of the first large-scale conferences on environmental security and what is hoped to be the start of an annual series. The conference report gives a sense of the diverse discussions held in the Netherlands.

Canada is well known as a world leader in measures of human wellbeing. Since the launch of the UN Human Development Index in 1990, Canada has ranked among the top 10 countries every single year except one. But though Canadians can take a just pride in their country’s achievement on the global stage, it nevertheless masks grave concerns at home.