He also notes that increased CO2 can help boost agriculture productivity, making it easier to feed the world's population.
Climate change deniers love stuff like this though, you can bring it up in a bullet point list of "why climate change isn't a big deal" or whatever and push your false narrative without any of the individual points being false. People who bring this fact up and are subsequently labelled climate change deniers are being labelled that because of the context and content of their whole argument, not because one specific true fact was mentioned.
It's also a bit disingenuous to talk about Patrick Moore as a Greenpeace Co-founder without any context about what he's been up to since 1986 when he left the organization. This is just an appeal to authority that's only tenuously linked to reality.
Stop being disingenuous just so you can feed your persecution complex with strangers on the internet.
Hey mate, please remember the guidelines[0] when you comment.
[0]https://news.ycombinator.com/newsguidelines.html
But to your point about Patrick Moore, he really isn't a credible authority on this matter at all. The positive effects of carbon dioxide are true for the most part. However, this does nothing to invalidate the mountain of negative effects that destabilising the climate currently has and will continue to worsen.
> He also notes that increased CO2 can help boost agriculture productivity, making it easier to feed the world's population.
In cooler countries, this is indeed the case. However, most of the world's population lives in warmer regions, meaning even if we have plenty of food, it's poorer countries that will lack it, so we'll still get climate refugees.
Patrick Moore is proof that with enough money, you can buy whatever you want, including an "ecologist" who says that climate change is a good thing and not caused by humans.