Where River Meets Ocean

They exist all over the world, are among the most productive ecosystems on Earth and are home to a diverse array of wildlife. They also are essential to the global economy. They are estuaries — coastal embayments where fresh river water and salty ocean water meet.

Why is Hawaii banning oxybenzone and octinoxate from sunscreens?

The two ingredients help protect skin from UV rays, but researchers have found that they also cause bleaching, deformities, DNA damage and ultimately death in coral when sunscreen washes off beachgoers or is discharged into wastewater treatment plants and deposited into bodies of water.

The surprisingly lethal price of air-conditioning

As global temperatures rise year after year, we’ll probably be relying on AC more and more, but that, say scientists at the University of Wisconsin-Madison, is killing us, too. It may be more subtle than a heat wave, but the toll air-conditioning takes could have a much deeper, long-term impact.