This story was provided by Live Science, a sister site of Space.com.

In June, more than 60 climate scientists warned that the remaining "carbon budget" to stay below a dire warming threshold will be exhausted in as little as three years at the current rate of emissions.

But if we pass that critical 1.5-degree-Celsius (2.7 degrees Fahrenheit) warming threshold, is a climate catastrophe inevitable? And can we do anything to reverse that temperature rise?

Although crossing the 1.5 C threshold will lead to problems, particularly for island nations, and raise the risk of ecosystems permanently transforming, the planet won't nosedive into an apocalypse. And once we rein in emissions, there are ways to slowly bring temperatures down if we wind up crossing that 1.5 C threshold, experts told Liv

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