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How long do we have left, exactly, until climate change affects our global food supply?
I'm not very knowledgeable about this stuff. How long do we have left, like, 10-15 years at the most?
I'm not very knowledgeable about this stuff. How long do we have left, like, 10-15 years at the most?
How long until what? How long until we reach 1° of global heating? 1.5° of global heating? 2°? Until we can't prevent 1.5° of global warming? Until we can't prevent 2° of global warming? Until we face severe disruptions? Until the weather changes? Until sea levels rise by 5cm, 25cm, 50cm?
It's a very vague question.
In some cases, we have no time left - we might have already passed whatever milestone you're thinking of. In some cases, we have eternity (e.g. the human race won't go extinct). But there's a lot of "how long" answers between "nothing" and "forever".
What are you trying to learn?
Thanks. I've fixed your title to reflect what you're asking.
I recently tried to find global warming simulations for a science fiction story. There are none. It turns out that the entire Earth is too big of a system for scientists to make accurate predictions like that. They do know it will happen and have gross estimates, but they don’t know exactly when, where or how.
And that’s how my fictional world went from hard to mostly soft sci-fi.
Not a complete answer but this book is pretty good: https://en.m.wikipedia.org/wiki/Six_Degrees:_Our_Future_on_a_Hotter_Planet
Do notice that, while a good book, the author is a journalist. It contains some of his best, better informed guesses. He can do that as a journalist, and it’s awesome, but actual reputable scientists would be wary of this kind of prediction.
It may also be outdated.