We be hacked! So we must be a threat to somebody. They did a pretty thorough job of it, but in a way they did us a favor: maybe they were making a suggestion (albeit it in a nasty way) that we update the site.
So, we’re patiently rebuilding.
With the policies President Trump has embraced–where we don’t even meet the initial Paris targets and we return to promoting fossil fuels–then we face the very realistic prospect that total warming will be 4°C (7°F) or higher. And that, as the scientific literature makes clear, would be the end of modern civilization as we know it.