“We’re past the tipping point for the glaciers in the Canadian Rockies (…) Even if somehow, magically, we’re able to stop global warming tomorrow and return the atmosphere to more normal CO2 concentrations, we would lose most of the Rockies’ glaciers.”

…

“We might have a 20-year window of this much water and then it will start to fall off a cliff,” he says. “How much water is flowing through the river as a function of that time of year is going to start changing remarkably.”

…

“It’s sort of become a catchment for contaminants,” says Criscitiello. Legacy contaminants like DDT are starting to melt out of the snowpack, she says. “This has become a concern.”

:doomjak: