Declines in the biodiversity of pollinating insects and wild plants have slowed in recent years, according to a new study. Researchers found evidence of dramatic reductions in the diversity of species in Britain, Belgium and the Netherlands between the… Continue reading →
Palomar 2 is part of a group of 15 globulars known as the Palomar clusters. These clusters, as the name suggests, were discovered in survey plates from the first Palomar Observatory Sky Survey in the 1950s, a project that involved some of the most well… Continue reading →
The glaciers in the tropical Andes shrunk between 30 and 50% in 30 years, which represents the highest rate observed over the last three centuries. Scientists have recently published a summary which chronicles the history of these glaciers since their maximum extension, reached between 1650 and 1730 of our era, in the middle of the Little Ice Age. The faster melting is due to the rapid climate change which has occurred in the tropics since the 1950s, and in particular since the end of the 1970s, leading to an average temperature rise of 0.7°C in this part of the Andes. At the current pace of their retreat, small glaciers could disappear within the next 10 to 15 years, affecting water supply for the populations.Continue reading →
The belief among medical professionals in the 1950s that the mortality rate for type A acute aortic dissection during the initial 24 hours was one to two percent per hour appears to hold true in the contemporary era of treatment, based on a review of t… Continue reading →
The rise in risky, non-traditional sexual relations that marked the swinging ’60s and advent of readily available contraception actually began as much as a decade earlier, during the conformist ’50s, suggests a new analysis. The analysis strongly indic… Continue reading →
Kaid Benfield, Director, Sustainable Communities, Washington, DC
As most readers know only too well, the US pales by comparison to the rest of the world when it comes to getting around by anything other than single-occupancy car… Continue reading →
Kaid Benfield, Director, Sustainable Communities, Washington, DC
I am of the opinion, which is by no means universally held, that the Interstate Highway System, whose construction was begun in the 1950s, was good for America, or… Continue reading →
Kaid Benfield, Director, Sustainable Communities, Washington, DC
After many years of dramatically increasing home size in America – from an average of 983 square feet in the 1950s up to 2300 square feet in the 2000s, despit… Continue reading →