They’re tiny, they’re toxic, they’re everywhere. Cigarette butts are a huge source of pollution in Spain and lawmakers have said, enough. They’re ordering cigarette makers to pay for the cleanup, but smokers worry they’ll end up footing the bill.
Birds nests attract pests and parasites, like mites and lice. In Mexico, some birds have identified a way to keep the pests at bay, by taking discarded cigarette butts and weaving them into their nests. It remains to be seen, though, whether there are negative impacts on the birds as well.