3 massive changes you'll see as the climate careens toward tipping points

World leaders are heading into the final days of COP30, the United Nations climate meeting in Brazil. They are trying to agree on how to curb global warming and pay for the costs of an increasingly hotter planet.

For the last eight years , one of the main goals of the annual negotiations has been to limit global warming to 1.5 degrees Celsius, compared to temperatures in the late 1800s. That temperature goal was established after a landmark international scientific report laid out the catastrophic effects of exceeding that amount of warming.

But that goal is no longer plausible, scientists say. Humanity has not cut planet-warming pollution quickly enough, and the planet will exceed 1.5 degrees Celsius of warming, likely in the next decade, according to a recent United Nations repor