Extreme Heat Could Also Mean Power and Water Shortages

Extreme Heat Could Also Mean Power and Water Shortages

The sparse rainfall and low water levels are one reason that state officials in June built a $10 million emergency project—the size of San Francisco’s Transamerica Pyramid laid on its side—to keep ocean saltwater from surging into the delta.

I’m Vaccinated. When Is It Safe to Take My Mask Off?

I’m Vaccinated. When Is It Safe to Take My Mask Off?

“It is a little bit confusing that the public is told at one point that the vaccine is effective enough that they can pretty much ditch their mask anywhere, and now, this is clearly a different recommendation because of the very high transmissibility of the Delta variant,” Dan Diekema, an infectious disease epidemiologist at the University of Iowa College of Medicine, says.

Now Isn't the Time to Abandon Contact Tracing

Now Isn't the Time to Abandon Contact Tracing

The rise of the Delta variant is sparking all sorts of memories—the anxiety amid the first Covid wave in spring of 2020, the crushing winter surge, the unceasing debate about “nonpharmaceutical interventions” such as masking and distancing, the concerns about kids and schools.

The World Is Suffering from Champlain Towers South Syndrome

The World Is Suffering from Champlain Towers South Syndrome

Epidemiologists all agree that huge unvaccinated populations abroad are breeding grounds for potentially more dangerous variants of the virus, like the more virulent Delta variant, which has triggered a terrifying rise in cases across the globe.When it comes to our response to climate change , Champlain Towers looks like a model of responsibility.

These New Shape-Shifting Materials Get Super Cool, Super Fast

These New Shape-Shifting Materials Get Super Cool, Super Fast

It’s part of a broader category of caloric effects, in which some external trigger—a force, pressure, a magnetic or electric field—induces a change in a material’s temperature.If the rubber is stretched quickly enough, the latent heat stays in the material and its temperature goes up.

Exploring and Protecting the Arkansas Bayou

Exploring and Protecting the Arkansas Bayou

In 2009, Bayou DeView became the focus of the conservation and birding communities when the supposedly extinct ivory-billed woodpecker was purportedly spotted there.“Flatwater paddling through the delta is another unique reason we support this place,” says Porter, “We built the camping platforms a new way.