The Science of Fear

Daniel Gardner . 2008 . BvtLib 152.46 GAR


0.3 m

2 tons

1000/y

1 m

100 tons

40/y

3 m

2000 tons

2/y

30 m

2 Mtons

60 m

80 Mtons

Tunguska

3000 m

80 Mtons

K–Pg (Cretaceous–Paleogene) extinction event

|| 5780 per million in the 1950s || || 5000 per million in the 1960s || 3.3 billion people averaged over the 1960s || || 950 per million in 1970s || 4 billion people averaged over the 1970s || || 290 per million in 1980s || 4.8 billion people averaged over the 1980s ||