Former Vice President Al Gore asserted on the 20th anniversary of his Oscar-winning documentary 'An Inconvenient Truth' that climate scientists have been proven correct in their predictions about global warming.

Released in 2006, the film aimed to educate the public about Gore's campaign to raise awareness of climate change. Speaking with ABC News' Ginger Zee, Gore reflected on the film's legacy and the accuracy of its scientific projections.

"Unfortunately, yes. The scientists were dead right on all the important elements of it," Gore told ABC News. He characterized the continued use of the atmosphere as a dumping ground for heat-trapping gases as "insane," comparing the daily heat absorbed by the Earth to the detonation of 800,000 Hiroshima-class atomic bombs.

A review of the documentary's key claims by ABC News found that most of its scientific observations have materialized or are on a trajectory to do so. The period from 2015 to 2025 has been identified as the hottest decade on record, according to data from NOAA and the Copernicus Climate Change Service, as summarized by the World Meteorological Organization.

The film also addressed the link between ocean warming and hurricane intensity. In the last decade, climate scientists have increasingly documented evidence suggesting that human-caused warming contributes to more powerful storms and enables rapid intensification of tropical cyclones.

Gore's film projected that carbon dioxide (CO2) emissions would reach 500 parts per million (ppm) within 50 years. In 2006, CO2 levels were approximately 380 ppm. Current levels now exceed 430 ppm, which is over 50% higher than pre-Industrial Revolution figures, according to NOAA.

However, Gore noted that the planet has not yet reached the 500 ppm threshold, partly due to the increasing generation of electricity from renewable sources. He described this shift as positive news for economic forecasts regarding future fossil fuel use.

In May, solar energy surpassed coal in U.S. electricity generation for the first time historically, as reported by Ember, a clean energy think tank. Despite this progress, Gore cautioned that the issue of CO2 emissions is far from resolved.