I believe the big problem here is agriculture and land management. So my answer is simple: plant flowers and have less children. That's it. Limit humans and we limit the problem. It is controversial I know but it is the only solution that I know will work. Thoughts?
Let me explain further what I am banging on about here Pretty much worldwide the arable land is ALL (>80%)used for farming- That is to feed us today.We are doubling in population every 30 years.. yep thats right 3 billion more mouths to feed every 30 years. We have improved farming techniques to increase populations and reduced the amount of natural habitat that support bees and other plant and animal species. In order to really elicit change we need to encourage the world through sensible family planning to diminish in number. Other countries that fail to adopt sensible population management strategies should be restricted with trade embargoes and other political actions. Individual action is not enough and whilst we each can to our part to assist we need to act as a collective whole to affect real change. This is a global issue and not an individual one and needs to be addressed as such.
Now people dont like being told to not have children, we have been genetically engineered over the eons to have more children so this is by definition unnatural. but will appropriate government policies and financial incentives from governments we can solve this problem (and probably a bunch of other problems too)
I hope we get some comments here as this is a controversial issue and i want a debate