World population facing water stress could ‘double’ by 2050

World population facing water stress could ‘double’ by 2050 as climate warms

The number of people exposed to water stress could double by 2050 if efforts are not made to keep global warming below 2C above pre-industrial levels and future population growth is high, a study finds.

This means an additional 380 million people could face water stress by mid-century, when compared to the number in 2010.

Even if the world does meet the Paris Agreement’s temperature target of limiting warming to … [more…]

Single Systems: Great Lakes cities’ sewer designs mean waste in the waters

Single Systems: Great Lakes cities’ sewer designs mean waste in the waters (Lake Ontario)

The video shot in the summer of 2016 is grisly.

In it, Mark Mattson, co-founder of the Lake Ontario Waterkeeper, displays materials skimmed from the Toronto harbor, which lies along the northwestern end of Lake Ontario.

As his small boat bobs in the water, he lays them on a wooden oar: slimy condoms, tampons and wet naps.

And he points to a likely culprit: the millions of gallons of raw … [more…]

Large contribution from anthropogenic warming to an emerging North American megadrought

A trend of warming and drying

Global warming has pushed what would have been a moderate drought in southwestern North America into megadrought territory. Williams et al. used a combination of hydrological modeling and tree-ring reconstructions of summer soil moisture to show that the period from 2000 to 2018 was the driest 19-year span since the late 1500s and the second driest since 800 CE (see the Perspective by Stahle). … [more…]

Wisconsin Task Force on Water Quality — Recommendations

North central Wisconsin issues and efforts noted in Speaker's Task Force on Water Quality recommendations

MADISON, Wis. (WSAW) — The Speaker’s Task Force on Water Quality released its recommendations Wednesday, creating a bipartisan package of 13 bills that would invest $10 million in general purpose revenue towards improving water quality and water quality initiatives in the state.

Rep. Todd Novak, a republican chairing the task force, along with vice chair, democrat Rep. Katrina Shankland from Stevens Point and other members of the task force made … [more…]

Great Lakes Scientist says, “If We Lose The EPA, We Lose Lake Erie”

Great Lakes Scientist says, “If We Lose The EPA, We Lose Lake Erie”

At the 8th Binational Meeting of the Lake Erie Millennium Network, 125 scientists gathered at the University of Windsor in Ontario to hear experts weigh-in on the health of the southernmost, warmest and shallowest of the Great Lakes.

They presented research on everything from climate change, water quality, phosphorous, agricultural run-off, cyanobacteria (blue-green algae), hypoxia (deficiency in oxygen), cladophora (green algae) to ice, invasive species, sediment concentrations, and much, much … [more…]