This Cosmically Pivotal Moment
From the 2009 Terry Lectures at Yale University by Nancy Ellen Abrams and Joel Primack.
From the 2009 Terry Lectures at Yale University by Nancy Ellen Abrams and Joel Primack.
About 12 million years ago, Earth wasn’t sensitive to carbon dioxide ups and downs. But like seasonal allergies that develop when one gets older, the planet’s climate has started responding to changing CO2 concentrations relatively recently, according to new findings from paleoclimate researchers. The prevailing understanding in climate science is that there’s been a persistent…
A cost analysis of the technologies needed to transport materials into the stratosphere to reduce the amount of sunlight hitting Earth and therefore reduce the effects of global climate change has shown that they are both feasible and affordable. Published in IOP Publishing’s journal Environmental Research Letters, the study has shown that the basic technology…
The Earth’s oceans may be acidifying faster than at any point during the last 300 million years due to industrial emissions, endangering marine life from oysters and reefs to sea-going salmon, researchers said. Scientists found surging levels of carbon dioxide in the atmosphere forced down the pH of the ocean by 0.1 unit in the…
A keynote talk by Ursula Goodenough at the 2006 “Beyond Intelligent Design” symposium with responses by George Ellis, Dennis Cheek, Melchor Sánchez de Toca Alameda, and Robert Pollack, moderated by William Grassie.
Scientists are one step closer to understanding how to erase painful fear memories by successfully erasing them in a small group of people, according to a study published in the journal Science. The intervention requires no drug, acting through behavioral intervention alone. The new report follows a series of studies in which researchers have made…
Species don’t hang around forever. Homo sapiens has already notched up a mind-boggling 200,000 years on Earth. Is the end nigh? The geological statistics suggest not – the average mammal species celebrates its millionth birthday long before it begins to slip towards oblivion. But we are no average species, and there has long been a…