CNN town hall with Democratic presidential candidates Wednesday 9/4/19
ELIZABETH WARREN: “We’ve got, what, 11 years, maybe, to reach a point where we’ve cut our emissions in half. ... We’d better be willing to put the resources into it because the alternative is unthinkable.” .
AP FACTS: These statements are out of step with science. Climate scientists don’t agree on an approximate time frame, let alone an exact number of years, for how much time we have left to stave off the deadliest extremes of climate change.
PETE BUTTIGIEG : "For me and everybody I know, for the children that we hope to have, for the people who will be alive at the turn of the century, when if we don't change what we're doing, we could lose half the world's oxygen because of what's going on in the oceans. That is unthinkable."
AP FACTS: This is not sound science. Climate scientists told The Associated Press that Buttigieg's claim that half of Earth's oxygen is at risk is false. You and your descendants can breathe easy about the planet's oxygen levels. There are other things to worry about from climate change, fossil fuel combustion and Amazon fires."
BETO O'ROURKE, proposing U.S. leadership on climate change: "Convene those other top wealthy economies to make sure that this is our focus, to save the lungs of the planet that produce 6 percent of the oxygen that we breathe and to ensure that we do not trigger a crisis in the Amazon. Once it is set, we will never be able to roll back. "
AP FACTS: Lands of the Amazon are not "the lungs of the planet." That's a familiar phrase but not an accurate one. Oxygen production comes primarily from ocean sediments, not forests, which indeed generate oxygen but also consume it.
https://apnews.com/9d6adce79a774aa195e9e33b745d9fa0