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.

Heads of state gathered in New York for the September 19 United Nations Summit on Refugees and Migrants will reaffirm principles of international law, pledge to treat asylum seekers more humanely, and promise to improve coordination between humanitarian and development organizations.

Featured side by side at the top of The New York Times home page recently were two stories: one on the United States and China, the world’s largest producers of carbon emissions, committing to a global climate agreement, another on how rising seas are already affecting coastal communities in the United States.

More often than not in the discourse around gender and climate change, the word “gender” is used primarily to refer to women. There is no disputing that women are acutely vulnerable to the effects of climate change in ways that are different than men and sometimes hidden. However, this interchangeable use of words neglects other dimensions of gender, sexual orientation, and sexual identity. As a result, we are missing important ways gender impacts people’s experiences with climate change.

If we are to avert the worst of climate change impacts, we need better tools for identifying patterns of displacement and migration around climate extremes. In vulnerable developing countries, increasingly frequent and intense storms will likely exacerbate current patterns of displacement and permanent migration. Displacement often leads to humanitarian crises in the short term and can derail progress toward development in the long term. Because of this dangerous potential, displaced persons and migrants are a common focus in humanitarian responses. However disaster responders must often “fly blind” without the benefit of current, accurate information about the worst-affected populations. To better respond to the impacts of climate change as they unfold, we will need more rapid, cost-effective, and accurate methods for identifying patterns of displacement and migration.

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.

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.

2015 was a deadly year for environmental activism. According to Global Witness, 185 activists were killed, a 60 percent increase from 2014. Of the victims, 40 percent were indigenous people, like Berta Cáceres, who spoke at the Wilson Center last year and was shot and killed in her home in Honduras this March. [Video Below]