Month: July 2023

That symbol of “chasing arrows” you find on plastic does NOT mean it can be recycled. What we often call “recycling numbers” are actually “resin identification numbers” – meaning they tell you what kind of plastic you are dealing with. And this symbol was designed this way on purpose by the big plastic corporations, to give us the sense all plastic could be recycled. Which is of course not true.

Since the late 1930s, sperm counts around the world appear to have dropped significantly. While the decline was initially observed in western countries, there is evidence of the same phenomenon in the developing world, and it seems to be accelerating. Swan, a Berkeley-trained statistician-turned-epidemiologist, believes she knows why.