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1. Recycling scientists prefer the term "single use packaging" to "single use plastic", because the problem isn't the material, but what happens to it.
2. The carbon footprint of a plastic water bottle is 1,000 times that of tapwater and this doesn't even include its end of life. Even if they're put in the recycling only 9% will actually be recycled.
3. Not only can young people hear higher frequencies than older people, but the younger they are, the better they can hear them. This means that the annoying "mosquito sound" used to convince teenagers to move on is absolute agony to babies, who don't have that option.
4. Sound travels so well underwater that, before we introduced noisy ships to the oceans, whales in the Arctic and Antarctic could probably hear each other. Despite this, humans were so convinced the ocean was basically silent, that we invented sonically-triggered mines, and were then baffled when they were triggered by the fish dawn chorus, because it hadn't occurred to us that was a thing.
5. While I'm happy to sit for over an hour in a lecture theatre in Edinburgh listening to people talking science, for some reason I have a much lower attention span when I'm in my own kitchen watching a video.
2. The carbon footprint of a plastic water bottle is 1,000 times that of tapwater and this doesn't even include its end of life. Even if they're put in the recycling only 9% will actually be recycled.
3. Not only can young people hear higher frequencies than older people, but the younger they are, the better they can hear them. This means that the annoying "mosquito sound" used to convince teenagers to move on is absolute agony to babies, who don't have that option.
4. Sound travels so well underwater that, before we introduced noisy ships to the oceans, whales in the Arctic and Antarctic could probably hear each other. Despite this, humans were so convinced the ocean was basically silent, that we invented sonically-triggered mines, and were then baffled when they were triggered by the fish dawn chorus, because it hadn't occurred to us that was a thing.
5. While I'm happy to sit for over an hour in a lecture theatre in Edinburgh listening to people talking science, for some reason I have a much lower attention span when I'm in my own kitchen watching a video.
