Which happened earlier: Silent Spring published by Rachel Carson (warns of pesticide harm to bees) or Greenpeace founded?

Question 1

Which happened earlier?

A Silent Spring published by Rachel Carson (warns of pesticide harm to bees) ✓ Earlier

B Greenpeace founded

Silent Spring published by Rachel Carson (warns of pesticide harm to bees) (27 September 1962) came before Greenpeace founded (15 September 1971)

Question 2

Which happened earlier?

A Ozone hole over Antarctica first confirmed ✓ Earlier

B Montreal Protocol signed

Ozone hole over Antarctica first confirmed (16 May 1985) came before Montreal Protocol signed (16 September 1987)

Question 3

Which happened earlier?

A Endangered Species Act signed (US) ✓ Earlier

B CITES (Convention on International Trade in Endangered Species) comes into force

Endangered Species Act signed (US) (28 December 1973) came before CITES (Convention on International Trade in Endangered Species) comes into force (1 July 1975)

Earlier #73