Oh Just Say It: Climate Change Is (Partly) Responsible For Houston’s Flooding

Song Qiong/Xinhua via ZUMA

Fight disinformation: Sign up for the free Mother Jones Daily newsletter and follow the news that matters.

Dara Lind reports on the “500-year” flood currently engulfing Houston:

Tomball, Texas, Public Works director David Esquivel told a local paper there this year that the Houston area had “two 500-year storms back to back”: over Memorial Day weekend of 2015 and early April 2016. That means that Hurricane Harvey constitutes the third “500-year” flood in three years.

….Either Houston is incredibly unlucky or the risk of severe flooding is a lot more serious than the FEMA modeling has predicted — and the odds of a flood as bad as the ones Houston has seen for the past few years are actually much higher than 1 in 500.

I’m going with Door #2. When everything is finally totted up, the flooding from Hurricane Harvey will probably be classified as a 1000-year flood, making this 3-year string even less likely. And while some of this probably is just coincidence, it’s almost certainly also a consequence of global warming, which creates more intense storms with higher levels of water vapor.

I wrote about this yesterday, and naturally got some pushback. “Harvey is unprecedented because it got stalled by a front, not because of climate change,” said one tweeter. That’s true about the front, and of course no one can say that climate change “caused” the flooding. But you can say that climate change increased the probabilities. Maybe it made Harvey a little more intense. Maybe it increased Harvey’s water vapor content a little bit. Maybe it made the front a little bit stronger. Add it all up and climate change didn’t cause Harvey, but it probably made it a few percent more likely and a few percent worse than it otherwise would have been. And at the tail end of bell curves, a few percent can mean a lot. It can turn a 500-year event into a 30 or 50 or 70-year event. Multiply this by the entire country, where the probabilities average out, and you can say without a doubt that climate change will produce more drought, more wildfires, more intense storms, and more flooding.

That’s how this stuff works. No big weather event ever has a single cause, but climate change skeptics are unwise to hang their hats on that. Likewise, I think that climate change hawks are unwise to shy away from blaming climate change for individual events. Their fear, generally, is that you can’t prove the role of climate change in any single extreme weather event, and they don’t want to open themselves to charges of alarmism. That’s admirable, but maybe just a bit too precious.

WHO DOESN’T LOVE A POSITIVE STORY—OR TWO?

“Great journalism really does make a difference in this world: it can even save kids.”

That’s what a civil rights lawyer wrote to Julia Lurie, the day after her major investigation into a psychiatric hospital chain that uses foster children as “cash cows” published, letting her know he was using her findings that same day in a hearing to keep a child out of one of the facilities we investigated.

That’s awesome. As is the fact that Julia, who spent a full year reporting this challenging story, promptly heard from a Senate committee that will use her work in their own investigation of Universal Health Services. There’s no doubt her revelations will continue to have a big impact in the months and years to come.

Like another story about Mother Jones’ real-world impact.

This one, a multiyear investigation, published in 2021, exposed conditions in sugar work camps in the Dominican Republic owned by Central Romana—the conglomerate behind brands like C&H and Domino, whose product ends up in our Hershey bars and other sweets. A year ago, the Biden administration banned sugar imports from Central Romana. And just recently, we learned of a previously undisclosed investigation from the Department of Homeland Security, looking into working conditions at Central Romana. How big of a deal is this?

“This could be the first time a corporation would be held criminally liable for forced labor in their own supply chains,” according to a retired special agent we talked to.

Wow.

And it is only because Mother Jones is funded primarily by donations from readers that we can mount ambitious, yearlong—or more—investigations like these two stories that are making waves.

About that: It’s unfathomably hard in the news business right now, and we came up about $28,000 short during our recent fall fundraising campaign. We simply have to make that up soon to avoid falling further behind than can be made up for, or needing to somehow trim $1 million from our budget, like happened last year.

If you can, please support the reporting you get from Mother Jones—that exists to make a difference, not a profit—with a donation of any amount today. We need more donations than normal to come in from this specific blurb to help close our funding gap before it gets any bigger.

payment methods

WHO DOESN’T LOVE A POSITIVE STORY—OR TWO?

“Great journalism really does make a difference in this world: it can even save kids.”

That’s what a civil rights lawyer wrote to Julia Lurie, the day after her major investigation into a psychiatric hospital chain that uses foster children as “cash cows” published, letting her know he was using her findings that same day in a hearing to keep a child out of one of the facilities we investigated.

That’s awesome. As is the fact that Julia, who spent a full year reporting this challenging story, promptly heard from a Senate committee that will use her work in their own investigation of Universal Health Services. There’s no doubt her revelations will continue to have a big impact in the months and years to come.

Like another story about Mother Jones’ real-world impact.

This one, a multiyear investigation, published in 2021, exposed conditions in sugar work camps in the Dominican Republic owned by Central Romana—the conglomerate behind brands like C&H and Domino, whose product ends up in our Hershey bars and other sweets. A year ago, the Biden administration banned sugar imports from Central Romana. And just recently, we learned of a previously undisclosed investigation from the Department of Homeland Security, looking into working conditions at Central Romana. How big of a deal is this?

“This could be the first time a corporation would be held criminally liable for forced labor in their own supply chains,” according to a retired special agent we talked to.

Wow.

And it is only because Mother Jones is funded primarily by donations from readers that we can mount ambitious, yearlong—or more—investigations like these two stories that are making waves.

About that: It’s unfathomably hard in the news business right now, and we came up about $28,000 short during our recent fall fundraising campaign. We simply have to make that up soon to avoid falling further behind than can be made up for, or needing to somehow trim $1 million from our budget, like happened last year.

If you can, please support the reporting you get from Mother Jones—that exists to make a difference, not a profit—with a donation of any amount today. We need more donations than normal to come in from this specific blurb to help close our funding gap before it gets any bigger.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate