Twenty Years Later, Al Gore’s ‘Inconvenient Truth’ Deadlines Have Come and Gone

Twenty years after Al Gore’s An Inconvenient Truth told Americans to picture lower Manhattan underwater, Fox News host Laura Ingraham simply played the tape back. On her Sept. 15, 2026, broadcast of The Ingraham Angle, under an on-screen banner reading “The Left’s Never-Ending Doomsday Machine,” she aired the film’s most famous scare sequences and let two decades of real-world data do the talking.

The clips have aged badly. The specific, time-bound predictions that made the 2006 documentary a cultural event, and helped win its star a Nobel Peace Prize, did not come true on the schedule Gore and his allies set. That doesn’t mean the planet hasn’t warmed. It means the people who built a political movement on deadlines owe the public an accounting they have never delivered.

What the film said

The segment replayed Gore’s warning about melting polar ice: “If this were to go, sea level worldwide would go up 20 feet.” The film then walked viewers through animated floods: Florida, the area around Shanghai, “home to 40 million people,” the area around Calcutta, “60 million,” and finally New York. “Here’s Manhattan. The World Trade Center Memorial would be underwater,” Gore said, before asking audiences to “think of the impact of a couple hundred thousand refugees and then imagine a hundred” million.

Then came the line that became the film’s most quoted forecast. As PolitiFact has documented, Gore told viewers: “Within the decade, there will be no more snows of Kilimanjaro.”

To be precise about it, the 20-foot figure was framed as what would happen if the Greenland or West Antarctic ice sheets melted, not as a dated forecast. But the film’s imagery left audiences with the clear impression that this was a near-term threat. A British court said exactly that.

A judge saw it coming in 2007

In October 2007, a school governor in England, Stewart Dimmock, challenged the British government’s plan to send the film to every secondary school. High Court Judge Michael Burton ruled that the film was “broadly accurate” and “substantially founded upon scientific research and fact,” but found nine significant errors made in, as ABC News reported his words, “the context of alarmism and exaggeration.”

Among them, according to the journal Nature’s account of the ruling, was the suggestion that sea levels would rise 20 feet from melting Greenland ice “in the near future.” Burton allowed schools to show the film only if teachers handed out guidance notes balancing what he called Gore’s “one-sided” views, and he described the film’s “apocalyptic vision” as something other than impartial science. The ruling came one day before Gore shared the Nobel Peace Prize.

What actually happened

Start with the oceans. According to NOAA’s Climate.gov, global mean sea level in 2023 stood about 3.99 inches above 1993 levels, the highest annual average in the satellite record. The agency puts the rise since 1880 at about 8 to 9 inches. Its most recent stated rate, 3.6 millimeters per year for 2006 to 2015, is real and, NOAA says, accelerating. But at that pace, 20 feet of rise would take roughly 1,700 years. The World Trade Center Memorial is not underwater. Neither is Shanghai.

Next, Kilimanjaro. The decade Gore gave the mountain’s snows ended around 2016. In February 2022, PolitiFact reported that Kilimanjaro’s ice fields “didn’t disappear by 2020.” The 2002 scientific paper behind the claim had projected that the remaining ice fields were “likely to disappear between 2015 and 2020” if conditions persisted. They did not disappear. Glaciologist Douglas Hardy told PolitiFact that the ice is still shrinking and that, by and large, only the mountain’s northern ice field remains, about half a square kilometer in size. Shrinking, yes. Gone, no.

Finally, the Arctic. At the Copenhagen climate summit on Dec. 14, 2009, Gore told delegates, as quoted by NPR, that “some of the models suggest to Dr. [Wieslav] Maslowski that there is a 75 per cent chance that the entire north polar ice cap, during the summer months, could be completely ice-free within five to seven years.” The scientist he named pushed back almost immediately. “It’s unclear to me how this figure was arrived at,” Maslowski said.

Five to seven years from 2009 was 2014 to 2016. In September 2025, NASA reported that Arctic sea ice reached its annual minimum on Sept. 10 at 4.60 million square kilometers, about 1.78 million square miles, tied for the 10th-lowest on record. That is a long-term decline worth studying. It is not an ice-free Arctic.

Why the receipts matter

None of this settles every question about climate. Sea levels are rising, Kilimanjaro’s glaciers are retreating, and Arctic ice is lower than it was in the 1980s. Honest people can debate what to do about that.

But that is not how the debate was run. For twenty years, Americans were told the science was settled and the debate was over, and the proof offered was a slideshow of drowned cities and vanishing snowcaps on a timetable. That urgency was used to justify mandates, subsidies, energy restrictions and a cost-of-living squeeze that ordinary families are still paying for. When the deadlines passed, the misses got a fraction of the attention the warnings did, and most of the audience that was sold those specific predictions never heard that they had missed by a mile.

President Trump has mocked doomsday climate forecasts for years. Ingraham’s segment didn’t require a single new argument. It only required the original footage and a calendar.

The film turned 20 this year. The most useful anniversary exercise is the one Ingraham ran: put the old forecasts next to the measurements and see which ones survived.

The debate was declared over twenty years ago, and the Arctic, the oceans and Kilimanjaro never got the memo.

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