1. Walker, R. The insect apocalypse is coming: Here are five lessons we must learn. Truthout, April 7, 2019. A precipitous drop in the world’s insect population could become catastrophic to humans. A principal driver of insect decline is humanity’s food production.
2. Perrone, D. Americans are drilling deeper groundwater wells. Nature Sustainability, July 22, 2019.
3. Three billion North American birds have vanished since 1970, surveys show
4. Can stripping the air of moisture quench the world’s thirst?;Halford;CandEN,2018
5. Gutman, D. Rainwater harvesting eases daily struggle in Argentine’s Chaco region. IPSNews, November 6, 2018.