★ 5.1
★ 5.2
★ 5.6
★ 0.0
★ 6.6
★ 1.0
★ 5.5
★ 8.5
★ 9.0
★ 6.9
Before we run out of gasoline, we will no longer have phosphorus for industrial agriculture. No fertilizer, no harvest! And in 300 years, humanity will be history...
