Scientists discovered that Norway spruce trees near a Finnish gold mine contain gold nanoparticles in their needles, facilitated by symbiotic bacteria called endophytes, which may help in gold exploration efforts, although the gold amounts are tiny.
Bark beetles, exacerbated by climate change, are causing significant damage to Germany's Harz forest, with two-thirds of the spruce population already destroyed. Drier conditions and higher temperatures weaken the trees' defenses, making them more susceptible to the beetles' larvae. Forest managers are working to remove vulnerable trees and use pesticides, but there is no easy solution. Conservation efforts, such as planting other tree species that can better withstand these conditions, are being considered for the long term.
Bark beetles, known as "book printers," are causing significant damage to Germany's Harz forest, with two-thirds of the spruce trees already destroyed. Climate change, with its drier conditions and hotter temperatures, has made the trees more vulnerable to the beetles' larvae. The beetles burrow into the trees' cambium, hindering their ability to receive nutrients. Forest conservationists are struggling to control the pests, as longer droughts and weakened trees provide favorable conditions for beetle reproduction. Forest managers are working to remove susceptible trees and use pesticides, but conservation efforts are limited by external factors like the changing climate. Planting other tree species that can better withstand these conditions may be a long-term solution.