A new analysis of freshwater resources across the globe shows that the updated planetary boundary for freshwater change was surpassed by the mid-twentieth century. In other words, for the past century, humans have been pushing ...
Earth Sciences
Mar 4, 2024
4
412
An extreme heat wave struck the Pacific Northwest in June 2021. Temperatures soared above 40°C (104°F) across Oregon, Washington, and British Columbia, sometimes even approaching 50°C (122°F). Experts estimate that at ...
Environment
Dec 27, 2022
0
153
In 2007 the largest recorded tundra fire in the circumpolar arctic released approximately as much carbon into the atmosphere as the tundra has stored in the previous 50 years, say scientists in the July 28 issue of the journal ...
Environment
Jul 27, 2011
3
0
The semi-aquatic earthworms in the genus Glyphidrilus are somewhat unfamiliar species that live between the terrestrial and freshwater ecosystems of rivers, streams, canals, ponds, swamps and paddy systems. Remarkably, each ...
Plants & Animals
Feb 6, 2013
0
0
Giant pandas aren't dying like they used to. In the early 1980s, starvation accounted for more than nine out of ten deaths. However, over the past three decades a parasitic gut worm has replaced that as the dominant killer.
Plants & Animals
Jan 28, 2015
0
35
A biomechanical experiment conducted at the University of Pennsylvania School of Engineering and Applied Science has answered a long-standing theoretical question: Will microorganisms swim faster or slower in elastic fluids? ...
General Physics
May 18, 2011
1
0
Yellow-cedar, a culturally and economically valuable tree in southeastern Alaska and adjacent parts of British Columbia, has been dying off across large expanses of these areas for the past 100 years. But no one could say ...
Environment
Feb 1, 2012
0
0
Drained peat soils in Denmark account for about one-third of agricultural greenhouse gas emissions.
Ecology
Jul 7, 2023
0
21
As devastating images of the 2019 Midwest floods fade from view, an insidious and longer-term problem is emerging across its vast plains: The loss of topsoil that much of the nation's food supply relies on.
Environment
Apr 16, 2019
0
13
Drying of northern wetlands has led to much more severe peatland wildfires and nine times as much carbon released into the atmosphere, according to new research led by a University of Guelph professor.
Environment
Nov 1, 2011
9
0
