Climate change worsens extreme weather. A revolution in attribution science proved it.

There’s a cliché that has popped up for years in discussions of climate and weather disasters: You can’t blame any individual event on climate change. Climate is all about trends and statistics, the reasoning goes, so you can’t necessarily draw meaningful conclusions from a single data point, be it a heat wave, a hurricane, or…

Solar farms are often bad for biodiversity — but they don’t have to be

Every several years — sometimes just once a decade — when the rains come in just the right amounts and at just the right times, rare flowers speckle the Mojave Desert in California. Some, like the Barstow woolly sunflower, emerge from plants no larger than a thumbnail. They spring forth from seeds that have persisted…

What we actually know about the vaccines and the delta variant

The Covid-19 pandemic has changed, and with it, so has the effectiveness of the vaccines. The bottom line remains the same: The mRNA vaccines from Pfizer/BioNTech and Moderna that are most prevalent in the US are still quite effective in preventing any illness from the novel coronavirus, and extremely effective in preventing the kind of…

How a cheap antidepressant emerged as a promising Covid-19 treatment

Since Covid-19 patients started showing up at clinics and hospitals a year and a half ago, doctors and researchers have been hard at work trying to figure out how to treat them. Most drugs and treatments haven’t panned out, producing either no results or small ones in large-scale clinical trials. Many of the few that…

What full FDA approval for Covid-19 vaccines really means

Nearly nine months after the first Americans received their shots, the Covid-19 vaccine from Pfizer/BioNTech received full approval from the Food and Drug Administration for people 16 and older on Monday. This could help increase the number of people willing to get vaccines and make it easier to compel those who are less willing —…

The lab leak hypothesis — true or not — should teach us a lesson

The origins of the novel coronavirus that caused the Covid-19 pandemic remain a mystery. US intelligence agencies have now completed a 90-day probe into the origins of SARS-CoV-2, but their classified findings, according to the New York Times, were inconclusive as to whether the virus escaped from a laboratory in Wuhan, China, or made a…