Fossil fuels are the tip of the iceberg. I don't know why people are so focused on fossil fuels.
In addition to that we are poisoning the earth through toxic chemicals poured into the sea, the air, and the earth through manufacturing products with deadly residue. The amount of damage that just the manufature of 720 million pairs of jeans are doing is horrific.
Until we stop business production, we don't have a chance in hell. I don't think anything will be done about climate change unless government is okay with changing the entire system of production and distributation.
That said, I just checked out Mann's qualification. Indeed, very solid, and obviously worth reading more of what he says. Thanks.