On average, the temperature has gone up 1?C at a rate much faster that what looks like sudden jumps when the Earth pulled out of ice ages. Much faster than anything we see in Earth's history. There used to be swings of 5-8?, but they happened over 5,000 years, which is long enough for plants to relocate. (Just barely enough for trees to migrate, or maybe it's just barely enough because the only trees that survived could move that fast.)
Coral reefs are home to more biodiversity than any other habitat on Earth. They are the rain forests of the ocean. Something like a third or half of them are dead or dying.
In places where we've been surveying bug populations for decades, we're seeing populations drop by 45-76% across many species around the globe. Of course we're also seeing similar drops in the frogs and lizards the eat the bugs.
Globally, the amount of big animals has been crushed, both on land and in the oceans.
You can argue over how much of all this is due to the temperature rise vs. other things mostly also done by man, but acting like it's bogus science is stupid. There's nothing bogus about it. Even Trump recently said something about it changing, but it will change back. Go ahead and evolve your argument to something about it being more effective to keep the economy strong so we can adapt to the temperature changes and claim that was always your point so you don't have to admit you were terribly, terribly wrong, but don't hang on to this tired and absurd BS. The temperature is changing because of the way we changed the atmosphere.
