If the climate warms further, it will increase the amount of land which can be farmed, rather than reduce it. The panic about famines is unfounded. Higher temperatures means land which is too cold can be turned over to agriculture and a longer growing season, will enable a greater range of crops and more food to be grown within a year. Higher global temperatures result in increased global precipitation, so deserts will on average shrink, increasing the arable land further.
There's no shortage of agricultural land though, so I don't view this as a positive outcome even if it were true. The problem with global hunger is one of infrastructure rather than farming. If the rest of the world's agricultural land was as productive as the West is with its, we'd easily be able to support a 10bn+ population with no one in hunger. Even more so if you reduced food waste, the average person wastes a ridiculous amount. But if you can't get food to the deepest parts of, say, Somalia, because of war and conflict, people are going to starve regardless.
Of course we should be careful about how our actions affect the environment, but we need to avoid policies which will over-react and adversely affect economic growth. The health of the general population is linked to economic wealth. Richer countries have longer life expectancies and the death rate always increases after an economic downturn.
Agreed, in general. The biggest issue with the climate change activists is they intersect very strongly with the anti-capitalists. There is a way to solve the problems of climate change and maintain our way of life, but it requires action now and not later. That is hard, but
not impossible, to do with capitalism still in place. The idea that replacing capitalism with anything else would solve our problems is absolutely bonkers - especially given it essentially means that everyone agrees to significantly reduce their standard of living. Not happening in any democracy.
It's one of the reasons I'm constantly frustrated by statistics like "Apple pollutes X% of global emissions" ... without anyone apparently acknowledging that they, the consumer, bought a thing and caused that pollution.