In Koyra Number 6, a coastal hamlet bordering the Sundarbans in southwestern Bangladesh, a group of men unload barrels of water from their trawlers – 50 drums holding 30 liters each. They announce their arrival by yelling. And word spreads. This is how this village gets their daily drinking water, from a town nine miles away.

Frank Morton has been breeding lettuce since the 1980s. His company offers 114 varieties, among them Outredgeous, which last year became the first plant that NASA astronauts grew and ate in space. For nearly 20 years, Morton’s work was limited only by his imagination and by how many different kinds of lettuce he could get his hands on. But in the early 2000s, he started noticing more and more lettuces were patented, meaning he would not be able to use them for breeding.

The Earth’s front-line defenders are disappearing at an astonishing rate. On average three environmental activists were killed each week in 2015, according to a recent report from the United Nations special rapporteur on the situation of human rights defenders. Global Witness, an international NGO that documents natural resource extraction, corruption, and violence, reports a 59 percent increase in deaths last year compared to 2014. In total, 185 killings of environmental defenders were recorded by Global Witness in 2015.

As Syria has collapsed, spasming into civil war over the last five years, the effects have rippled far beyond its borders. Most notably, a surge of refugees added to already swelling ranks of people fleeing instability in Afghanistan, Iraq, Pakistan, and sub-Saharan Africa, leading to the highest number of displaced people since the Second World War. At the same time, scientists have noted record-breaking temperatures, a melting Arctic, extreme droughts, and other signs of climate change. For some, an obvious question is: what does one have to do with the other?

“Climate work is practical, common-sense, good development,” said Carrie Thompson, deputy assistant administrator at the Bureau for Economic Growth, Education, and Environment at the U.S. Agency for International Development (USAID). “It’s prevention, and we all know that preventative medicine is the best medicine.”

Environmental security? Climate security? How about planetary security. Last week at the venerable Peace Palace in The Hague, nearly 300 experts from around the world met for the somewhat dramatically named Planetary Security Conference, a new initiative aimed at bringing together people working on all things related to the environment, climate change, and their security implications.

“Before the famine my life was better. I was a man in my own country,” Abdi Abdullahi Hussein, a Somali refugee living in Kenya, tells The Climate Reality Project. “When you have livestock and a farm and it all disappears, it feels like falling off a cliff.”

Eddah Senetoi lives with her son in the small pastoralist community of Elangata Waus. They keep cows, goats, sheep, and donkeys to buy food and pay school fees. For her and other pastoralists living in southern Kenya’s Kajiado County, climate change is compounding challenges from land subdivision and privatization, and magnifying social tensions and community conflicts over access to resources.