Tag Archives: Climate Change

Monarch butterflies are beloved—and declining for this sad reason | Popular Science

Scientists trawled thousands of volunteer surveys over 25 years to understand what imperils the insects.

By Kate Baggaley | Updated Jul 21, 2021 12:00 PM

From article…

For the past three decades, monarch butterflies have been dwindling.

The iconic bugs face a number of threats in North America, from weed killers to climate change, but it hasn’t been clear which one has been the most damaging. A new study, however, indicates that the butterflies are especially sensitive to weather conditions in their spring and summer breeding grounds.

Scientists analyzed data from more than 18,000 monarch counts from across the United States, Mexico, and Canada spanning 25 years. They found that over the past 15 years, climate had an influence on the eastern monarch population that was nearly seven times that of other variables such as herbicide use.

Source: Monarch butterflies are beloved—and declining for this sad reason | Popular Science

Climate change and the Moon are teaming up to create record floods on Earth | Salon.com

The Moon’s orbit is “wobbling” — and that plus climate change will wreak havoc on the ground

By Matthew Rozsa, Published July 18, 2021 10:00AM (EDT)

Coastal village during a storm, UK. (Getty images/Peter Cade)

At the time of this writing, at least 120 people have been confirmed dead because of severe flooding in Western Europe.

It is tragically likely that, when this story is over, the number will be significantly higher. A German weather service (DWD) spokesman told CNN that in some areas there has not been this much rainfall in 100 years.

These extreme weather events are inextricably linked to climate change, politicians and experts have noted.

But there is another culprit, one above, that is also affecting the weather: a “wobble” in the orbit of the Moon. Indeed, only days before the flooding, a study in the journal Nature Climate Change by scientists from NASA and the University of Hawaii warned that the Earth may experience record flooding in the mid-2030s because of changes in the Moon’s orbit.

Source: Climate change and the Moon are teaming up to create record floods on Earth | Salon.com

Climate Change Has Knocked Earth Off Its Axis

Brian Kahn, Friday 5:12PM

A 3D portrait of methane concentrations and a slightly wobblier Earth.
Image: NASA

Of all the things attributable to climate change, the rotational poles moving differently is definitely one of the weirder ones. But a new study shows that’s exactly what’s happening. It builds on previous findings to show that disappearing ice is playing a major role, and shows that groundwater depletion is responsible for contributing to wobbles as well.

The findings, published last month in Geophysical Research Letters, uses satellites that track gravity to track what researchers call “polar drift.” While we think of gravity as a constant, it’s actually a moving target based on the shape of the planet. While earthquakes and other geophysical activities can certainly play a role by pushing land around, it’s water that is responsible for the biggest shifts. The satellites used for the study, known as GRACE and GRACE-FO, were calibrated to measure Earth’s shifting mass

Source: Climate Change Has Knocked Earth Off Its Axis

Earth Day: The Official Site | EARTHDAY.ORG

Photo by Akil Mazumder on Pexels.com

EARTH DAY 2021

THREE DAYS OF CLIMATE ACTION
ALL Streaming RIGHT Here starting April 20

YouTube Live…

Source: Earth Day: The Official Site | EARTHDAY.ORG

Climate emergency: The new science showing it’s make-or-break time | New Scientist

As climate talks ramp up ahead of the crucial COP26 meeting in Glasgow, new research on what our carbon emissions are doing to the planet paints a disturbing picture

Environment, 21 April 2021, By Michael Le Page

Pete Reynolds

SHALL we start with the good news or the bad news? The good news is that the world has made some progress in cutting the carbon emissions driving climate change.

The bad news is that it is by no means enough, and emerging research suggests that the impact of the emissions we are pumping into the atmosphere could be even greater than we feared.

“The science, if anything, has become more pessimistic,” says Stefan Rahmstorf, a climate scientist at the University of Potsdam, Germany. “The signs from the science are pointing towards more urgent climate action being needed.”

Source: Climate emergency: The new science showing it’s make-or-break time | New Scientist