Peter Whish-Wilson (Tasmania, Australian Greens) Share this | Hansard source

These plants have things called stomata. They are millions of little apertures where they take in CO2. So you're correct; they do actually use CO2. But when it gets hot they close. Anyone who understands the basics of how plants work would be able to tell you that. And, of course, in the future of climate change, it is going to get hotter. We are seeing extreme weather events—