A major climate refugee crisis is currently underway after one of the most catastrophic storms in recorded history ripped through the Bahamas, but the 2020 Democratic presidential debate Thursday night featured just one question and less than five minutes of discussion on the planetary emergency that is intensifying extreme weather, taking lives, and threatening to render large swathes of the planet uninhabitable.

"I don't know how Tom Perez and DNC leaders can look themselves in the mirror after tonight," said Varshini Prakash, co-founder of the youth-led Sunrise Movement. "When Tom Perez and Democratic Party leaders rejected a climate debate last month they promised us that they would ensure this issue got the attention it deserved. Tonight their check bounced."

The #DemDebate is over. There was 1 question and a few minutes of discussion on the climate crisis. Our generation's survival is worth more than that. This is a disgrace. @ABC and the @DNC should be ashamed. — Sunrise Movement (@sunrisemvmt) September 13, 2019

Hosted by ABC News in partnership with Univision, the third Democratic presidential primary debate took place in Houston, Texas, a city that is often referred to as the oil capital of the world.

Yet the first and only question specifically about the global climate crisis, which came two hours into the three-hour debate, did not make the connection between the oil and gas industry and the ecological emergency.

Noting the destruction caused in Texas by Hurricane Harvey in 2017, Univision's Jorge Ramos asked former Rep. Beto O'Rourke what "meaningful action" he would take to "reverse the effect of climate change."

O'Rourke said he would "make sure that we free ourselves from a dependence on fossil fuels and embrace renewable wind and solar energy technology."

Angering climate campaigners, many of the 10 candidates on stage—including Sen. Bernie Sanders (I-Vt.), whose Green New Deal plan has been hailed as a benchmark for climate policy—were not given an opportunity to respond to the question.

Observers noted that Hurricane Dorian—which destroyed tens of thousands of homes in the Bahamas and left at least 50 dead and 1,300 missing—was not mentioned during the debate.

"None brought up the people or places already suffering the extreme weather and insufficient infrastructure that scientists have long warned makes climate change deadly," reported HuffPost's Alexander Kaufman. "Catastrophic weather has displaced on average 24 million people per year since 2008, according to the Swiss-based Internal Displacement Monitoring Centre. By 2050, that number could climb to anywhere from 140 million to 300 million to 1 billion."

And with the youth-led global climate strikes just a week away, no questions were asked about what organizers say could be the largest mass mobilization for climate action in history.

"That sound you hear," reported The Guardian, "is every climate activist banging their head against the wall."

Wow. One question on climate. Less than 5 minutes. Most candidates didn’t even get to respond. Shame on you @abc. We need a #ClimateDebate. https://t.co/yihIaT895u — Evan Weber (@evanlweber) September 13, 2019

"Climate change is the greatest existential threat we face as a nation," said Sunrise's Prakash. "Yet, even as poll after poll show that it's a top concern for voters in the 2020 election, tonight's debate almost entirely ignored it."

"This is an emergency," Prakash added. "We need the next president to act like it. They should show they're ready to fight for our generation by standing up to the DNC and commit to a climate debate."