Gore's new documentary, "An Inconvenient Sequel: Truth to Power", argues that fighting climate change is a moral battle, on a par with the civil rights movement in the United States or the fight for gay rights. It shows Gore's direct involvement in persuading world leaders to back the Paris Agreement on climate change at the United Nations Climate Change Conference in 2015. "The very next day the entire world redoubled their commitments to the agreement".
Despite Trump's withdrawal, however, Gore still has hope for the USA and its role in the Paris accord.
Tensions were ratcheted up this week when the US president responded to news that Pyongyang had developed miniaturised nuclear warheads with a drastic warning that he would meet their continued threats with "fire and fury like the world has never seen".
Gore, who served as vice president under Bill Clinton and famously lost out to George W. Bush during the 2000 presidential election, described Trump's withdrawal from the Paris Agreement as "very troubling".
Gold buoyed by North Korea tensions, United States inflation data
Yesterday, the rupee had tumbled by 24 paise to hit a fresh one-week low of 64.08 against the United States dollar. Benchmark US 10-year notes last rose 6/32 in price to yield 2.1905 per cent, from 2.211 per cent late on Thursday.
Mr Gore, asked how big a problem Mr Trump is to his climate change goals, told BBC Radio 4's Today programme: "It turns out that he is probably less of a problem than I had feared when he made his announcement that the United States would pull out of the Paris Agreement".
Gore also opined on Trump's ongoing war of words with North Korea.
Gore told Newsweek that Trump's "intemperate comments on North Korea were really unwise".
Gore, who has been a stringent critic of Trump's views and actions on climate change, said that Trump "inherited a very unsafe situation" from previous world leaders and so should not be blamed entirely for the escalation, which most recently saw North Korea promising a plan to strike the USA territory of Guam within days.
Dow slips 100 points as tensions with N.Korea escalate
As a result, the yield on the benchmark ten-year note, which moves opposite of its price, is down by 1.5 basis points at 2.226%. USA crude rose 0.43 percent to $48.80 per barrel and Brent was last at $52.01, up 0.21 percent on the day.
"He has a secretary of defense and national security adviser, both of whom are immensely respected". "I hope he will listen to them, and I hope their cooler heads will prevail".
"I think it's only fair to point out [Trump] inherited this crisis", Gore said. "To me, he's a breath of fresh air compared to his predecessor".
The film is a follow-up to his blockbuster 2006 global warming film, An Inconvenient Truth.
FTSE sell-off gathers strength on North Korea fears
Or are people using these geopolitical concerns as an excuse to take money out of the market -- tech stocks in particular? The UK blue-chip index closed 113 points, or 1.5%, lower at 7,385, steadily losing ground as the trading session wore on.