By the end of the 21st Century human life on earth will not be anything like what we know today. It is time for some other branch of life to take over and a new world to evolve. We've had it I'm afraid.
Look at the facts
1 Nuclear power - no
2. wind power - no
3. Oil - no
4. gas no
5 bio fuels - no
6. Trees - no
7. sustainability - no
8. Civilisation - no
9. Peace - no
10. me -no (I'll be well dead by then)