The article gives historic background you may want to skip.
This past week there have been extreme heat waves in western India and Pakistan. Temperatures of 49 deg C or 120 deg F make conditions nearly unliveable.
Higher ocean temperatures cause more water to evaporate which then causes more rains and flooding on land. Higher temperatures on land are causing droughts in the western US.
Long term Droughts cause desertification – the land can no longer grow crops.
And the most important point is these are already happening – they’re not predictions or speculation. This is already happening here, now.
https://cleantechnica.com/2022/05/13/heatwaves-are-altering-our-everyday-lives/
