Like rings in a tree trunk, a narwhal’s tusk provides a window into changing conditions in the Arctic. In the Arctic, climate change and pollution… The post Narwhal Spiraled Tusks Reveal Toxic Mercury Exposure Related to Climate Change appeared first on SciTechDaily.
Thanks to the pandemic, we know just how quickly food can disappear from supermarket shelves. But it is hard to gauge the vulnerability of our food production system as a whole to abrupt changes, such as those that could be caused by extreme events such as a nuclear war or massive volcanic eruptions. New research […]