This is important for keeping their claws in shape, allowing them to shed old upper layers of their claws, leaving behind healthy nails. (hartroadanimalhospital.com)
Scientists have been measuring the heat in the warming upper layers since the 1970s, but these measurements have not been very accurate. (scientificamerican.com)
You do nt need much heat loss from the ocean upper layer to heat the air quite a lot. (skepticalscience.com)