Kit Stolz points us in the right direction:
"We've done numerous things to the landscape that took away these water-absorbing functions," he said. "Agriculture must respect the limits of nature."Not just agriculture. I remember being in Dauphin Island, Alabama and taking my kids to the sea lab they have there, in which they pointed out that all the runoff from all the asphalt leads to sudden, strong discharges into Mobile Bay, which weirds out the ecosystems therein (not the actual words).
The various environmental crises we're at the beginning of are not just CO2 related, but are a function of unprecedented numbers of us humanoids running around on the planet. Hopefully some of these nine billion brains will have some answers.