This time last year, I wrote an editorial describing the wildfires burning north of San Francisco, where many WiRED volunteers and board members live. Because of air pollution, we were holed up in our homes, able to venture outside only for chores and obligations we could not avoid. This year the fires have returned, and so has the air pollution, although the air isn’t as foul as it was last year. This year’s new disaster-related feature was the preemptive electricity outages, where power companies plunged 2.7 million people into darkness. Of course, neither the pollution nor the blackouts approach the horrors of the fires themselves and the losses to people who suffered through those infernos.

Disasters such as fires, hurricanes, earthquakes, tornadoes, floods and violent storms can cause great harm. These kinds of events underline the importance of a One Health perspective — the critical link among humans, animals and the environment that we all share.

On August 8 the United Nations released an Intergovernmental Panel on Climate Change (IPCC) report by 107 experts from 52 countries, which warns that the world’s food supply is at risk due to “unprecedented” climate change, combined with the exploitation of land and water resources.

Dengue fever threatens nearly half of the world’s population, but it will likely get much worse. The New York Times reports on a recent study that forecasts that climate change is about to boost the risk of the disease to considerably larger swaths of the population.