As pollen torments millions, it might be getting worse, and it’s poorly measured in America
PHILADELPHIA – He found masses of pollen as thick as “oatmeal,” and once discovered that grains from palm trees had ridden the winds for hundreds of miles to reach his front porch. For 17 years, Timothy Craig intercepted the airborne gametes of trees, grasses, and weeds with a whirling trap, assiduously examined the captives with a microscope, and posted his inferred daily pollen counts for the benefit of science and the allergy-tormented. Not many people are going through that much trouble these days. “It’s very labor-intensive and time-intensive,” said Craig, a professor of medicine and pedi...
The Philadelphia Inquirer
United wants passengers to donate money to sustainable jet fuel. But is it better than carbon offsets for saving the planet?
United Airlines is giving customers who want to reduce the environmental impact of their travel a way to buy sustainable jet fuel that releases fewer emissions than traditional jet fuel. The Chicago-based airline has already secured commitments from about a dozen companies using the program to help offset emissions from employee travel or their supply chain, including Deloitte, HP, Boston Consulting Group, Nike, Siemens and Takeda Pharmaceuticals. The companies will collectively purchase a total of 3.4 million gallons of sustainable fuel this year, Chicago-based United said Tuesday. Individual...