Why Are All Swedish Cottages Painted Red?

One company has exclusive rights to the source of the iconic pigment—a copper mine’s supply of iron deposits that may last just a century more. The color, known specifically as Falu red, has been a consistent symbol of pastoral life in Sweden. (Lars …

Flowers Are Changing Color in Response to Climate Change

As temperatures and ozone levels rise, blossoms are adjusting their UV pigmentation. Pollinators perceive the higher levels of UV-absorbing pigments as a darker hue, which could be confusing when they try to scope out colorful flowers to land on. (Image by PublicDomainPictures from …