[NEWS] Four science links, from tree-planting drones to the effectiveness of PrEP

[rfmcdonald]

• Australia's ABC reports on an ambitious plan to develop drones capable of mass tree planting.


• The Weather Network warns that global warming could see Canada circa 2100 experience tropical summers.


• National Geographic reports on the discovery of a thriving ecosystem existing in the waters beneath the Greenland icecap.


• Daily Xtra criticizes a recent MacLean's article for making bad arguments against anti-HIV treatment PrEP.