from the 2nd link ...
“The impacts could be potentially severe,” said NSF NCAR scientist Isla Simpson, lead author of the study. “This is a global problem, and it’s something that is completely unexpected given our climate model results.”
The unfortunate thing is that we treat the biosphere as a zero cost dumping ground, even dumping (well, deorbiting) space stations (plans for the ISS).
We, mankind, impact the environment in a multitude of ways. Isolating one single impact is IMHO facile. Unfortunately tackling the whole problem head on is way too complicated and too nebulous for our simple minds and politics. The answer is I guess market forces and government intervention (which will change with every new government, sigh) and an increased awareness of our environmental impact. We can move from one energy source (coal) to others (wind, solar, nuke) if we plan carefully. yeah, right. We'll run around like chickens ! I'm completely convinced that social unrest will do for us long before the environment starts cashing some of the cheques we've written.
"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.