8 billion people. Our planet never had a chance.

[Progressive dog]

138. so ,if we need more food we'll simply grow more?

We're running out of time to fix this population growth problem. More people equals more pollution. More people equals more climate change. More people equals more species extincted. More people equals more land for our food, more water, more fertilizer, and more energy usage. The aquifers are running dry in California and on the Great Plains. We have pumped hundreds of years of water out in a few decades. That is not sustainable.

The center-pivot irrigator was described as the "villain"[20] in a 2013 New York Times article, "Wells Dry, Fertile Plains Turn to Dust" recounting the relentless decline of parts of the Ogallala Aquifer. Sixty years of intensive farming using huge center-pivot irrigators has emptied parts of the High Plains Aquifer.[20] Hundreds to thousands of years of rainfall would be needed to replace the groundwater in the depleted aquifer. In Kansas in 1950, irrigated cropland covered 250,000 acres (100,000 ha); with the use of center-pivot irrigation, nearly three million acres of land were irrigated.[20] In some places in the Texas Panhandle, the water table has been drained (dewatered). "Vast stretches of Texas farmland lying over the aquifer no longer support irrigation. In west-central Kansas, up to a fifth of the irrigated farmland along a 100-mile swath (160 km) of the aquifer has already gone dry."[20]

https://en.wikipedia.org/wiki/Ogallala_Aquifer