The chemicals in our pharmaceuticals and personal care products quickly transform into different compounds when they enter the environment. Their toxic effects are relatively unknown.

Kimberly M. S. Cartier
Kimberly M. S. Cartier, Senior Science Reporter for Eos.org, joined the Eos staff in 2017 after earning her Ph.D. studying extrasolar planets. Kimberly covers space science, climate change, and STEM diversity, justice, and education
Dire and Drier Future for Lake Victoria
In the past, Lake Victoria dried out swiftly and often when rainfall was limited. Climate change might bring about those conditions again within a century.
Plankton Biodiversity Mapped Globally
A team of scientists sailed around the world to catalog the diversity of plankton species in the ocean. Their findings have important economic implications as climate warms.
Keystone Pipeline Spills 9,120 Barrels of Oil in Dakota Wetlands
The leak took place along a preexisting section of the Keystone Pipeline. This is the pipeline’s fourth spill in 9 years.
Voyager 2’s Interstellar Arrival Was Kind of Familiar. That’s Surprising
The spacecraft crossed the solar system’s edge at a different spot and in a different solar season than Voyager 1. Nevertheless, the border looked much the same in both spots.
Giant Geode Grew Slow and Steady
Temperature fluctuations, maybe from climate or maybe from geothermal systems, amplified a natural process that grew the crystals.
Modern Planet Protection Rules Recommended and Welcomed
Protocols for the Moon and Mars, human exploration, ocean worlds, and the private sector are all due for a major overhaul.
Yet Again, Warmer Winter Looms for U.S.
NOAA’s winter forecasts are less confident than usual except in Alaska and Hawaii. Expect to see a lot of weather variability in the coming months.
What Inflates the Solar Bubble? Voyagers Count What’s Missing
The first in situ measurement of the pressure at the edge of the solar system reveals that there’s still a lot we don’t know about what sets the size of the heliosphere.
Equity Concerns Raised in Federal Flood Property Buyouts
The communities most in need of federal property buyouts after a flood are the communities least likely to get them.