The Hills Are Alive With the Sound of Cacti

The Swiss are used to their snows in winter and Edelweiss flowers in the summer. The slopes of Valois canton, however, are now filling up with invasive Prickly pear cacti (https://www.theguardian.com/environment/2023/feb/10/cacti-replacing-snow-on-swiss-mountainsides-due-to-global-heating). This Prickly pear invasion seems to be yet another consequence of climate change. As the planet heats up, invasives like this cactus, can 'escape' from gardens, to exploit the new conditions. Removing such invasive plants can be a time-consuming and expensive business.