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The deadly wildfires ripping through Northern California are just the latest in a season of record-defying natural disasters in the United States. As the death toll passes 40, reports of Californians hiding in pools as their houses burn and scenes of devastated homes and vineyards add to 2017’s apocalyptic picture of how climate change is impacting America today.

Experts say the state can expect devastating fires like the ones in Napa Valley to become the new normal. Drier and drier conditions and creeping temperatures in the American Southwest, linked to climate change, serve to create tinderbox conditions for massive, catastrophic fires.

A quick look at two sets of data shows exactly how climate change has impacted California’s susceptibility to wildfires — and what the state can expect as the planet continues to warm.

a chart on the destructiveness of california wildfires
California’s wildfires are growing more destructive. Climate Signals

The past 10 years have been among the hottest years on record. According to NOAA, 2014, 2015, and 2016 are the third, second, and first hottest years on record, and each of these years hosted its own record-breaking fire in the state. It’s no coincidence that 13 of California’s largest 20 fires have occurred since 2000, and 10 of those in the past decade.

It’s worth noting that this graphic only covers fires through 2016. The fires in Napa have already burned more than 240,000 acres . And, as fires get larger and more destructive, California should expect to pay a heavier cost.

a chart showing the rising cost of wildfires
The cost of fighting wildfires is rising. Climate Signals

The Napa fires have destroyed more than 6,700 homes and businesses in Northern California and displaced 100,000 people. Tens of thousands of firefighters have been deployed at all hours to contain the fires since they began last week.

The destruction from these fires is part of a growing trend. The costs of fighting fire in California has skyrocketed over the past 30 years. Dried-out landscapes are fueling more intense, long-lasting and destructive fires, while warmer springs and autumns are extending the fire season, allowing more and more damage to occur. Urban and suburban sprawl into wildlands prone to fire only increases the risk posed to homes and businesses. A 2013 study found that almost 25 percent of homes in California are at high or extreme risk from wildfires — the highest percentage in the country.

Molly Taft writes for Nexus Media, a syndicated newswire covering climate, energy, politics, art and culture. You can follow her @mollytaft.

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