No major issues from twenty yrs ago are currently forecast to get better: the evidence.

Just in case you still dont think there is enough clear evidence of serious and urgent environmental problems interrelated with socio-economic (and therefore political) ones go to the major report: GEO-4. It says that no major issues raised twenty yrs ago are currently forecast to get any better!!

'... the latest in UNEP's series of flagship reports, assesses the current state of the global atmosphere, land, water and biodiversity, describes the changes since 1987, and identifies priorities for action. GEO-4 is the most comprehensive UN report on the environment, prepared by about 390 experts and reviewed by more than 1 000 others across the world.
It salutes the world's progress in tackling some relatively straightforward problems, with the environment now much closer to mainstream politics everywhere. But despite these advances, there remain the harder-to-manage issues, the "persistent" problems. Here, GEO-4 says: "There are no major issues raised in Our Common Future for which the foreseeable trends are favourable."...'