When Super Typhoon Haiyan ripped through the Philippines last month, the incredible damage visited on the people, infrastructure, and land was shaped by trends that have been in motion for decades. The country’s population has been growing rapidly, with high concentrations of people living in cities and along the coast; economic growth had been steady, but weak governance and corruption may have exacerbated vulnerability; and the gradual loss of coastal forests and mangroves left many communities exposed to the full brunt of the typhoon’s storm surge. On a positive note, wireless technology and crowd-sourced data helped in disaster response.

We made the crossing at night from Chamoli, reaching Okund, a Himalayan foothill town after dark. The innkeeper, anxious for guests in a travel economy that came to a standstill in mid-June, cooked dal and nan bread for dinner and then showed us to a room that was unlit and unheated.

When Cyclone Haruna swept across Madagascar last February, Blue Ventures, a marine conservation and community health organization, found themselves in a surprising new role. “We went from development, to aid, and back to development, in an integrated way we never expected,” said Medical Director Vik Mohan in an interview at the Wilson Center.

“Humanity is altering Earth’s life support system. Carbon dioxide emissions are accelerating; greenhouse gas levels are unprecedented in human history,” says a new video summarizing some of the most striking finds of the Intergovernmental Panel on Climate Change’s latest report. The climate system is changing rapidly, and it is “extremely likely,” the video quotes the IPCC, that humans are the central reason why.

Super Typhoon Haiyan left the central Philippines in ruins, with a staggering death toll that could climb well above 10,000. The U.S. military is leading the international response to the devastation, along with international aid agencies. The Pentagon has dispatched an aircraft carrier and five other Navy ships, plus a separate group of at least 90 marines and specially trained humanitarian relief teams to the area.

The effects of climate change are often conveyed through the lens of changing physical landscapes. Shifting weather patterns, the intensification of drought, flooding, and coastal erosion are all primary areas of climate research. But do researchers know enough about changes in the size, distribution, and composition of human populations as they relate to climate vulnerability? [Video Below]

When it comes to climate change vulnerability, it sometimes seems as if all eyes are on Bangladesh. As part of my research for a recent article exploring the rise of aquaculture in the country, I interviewed Saleemul Huq, senior fellow at the International Institute for Environment and Development in London, former executive director of the Bangladesh Center for Advanced Studies, and lead author of two chapters on adaptation and sustainable development in the IPCC’s third and fourth assessment reports. A number of his quotes made it into the final story but I wanted to provide the full transcript here as well, as his thoughts on the country’s climate-related risks, food security, and population dynamics are worth a read.