Five Green Living Resolutions for 2020

We won't solve all of the pressing environmental problems, but we can help mitigate some.
Parmelia Lichen

Lichens as Sensors for Air Pollution

Lichens often go unnoticed, living on the ground, on tree trunks, or on rocks. They're hearty, but remarkably sensitive to air pollution.
Mussels

When Cancer Spreads Between Species

The exchange of cancerous cells between organisms is rare. Scientist studied how it happened across species of mussels.
A tree in a native forest planted by Afforestt

Editors’ Picks: Sustainability and the Environment 2019

The environmental cost of cruise ships, the history of climate science, human fertilizer as waste, and other top stories about sustainability and the environment.

What’s in a (Planet) Name?

Planet names must be 16 letters or less, preferably one word, non-offensive, and not too similar to an existing one.
John Tyndall's setup for measuring radiant heat absorption by gases

How 19th Century Scientists Predicted Global Warming

Today’s headlines make climate change seem like a recent discovery. But Eunice Newton Foote and others have been piecing it together for centuries.
A person typing on a computer

How to Use Zotero and Scrivener for Research-Driven Writing

This month, I’m doing something a little different with my column: I’m sharing the system I use to write it, so that you can use or adapt my system.
Portrait of Alexander von Humboldt by Friedrich Georg Weitsch

Who Was Alexander von Humboldt?

Remembering the work of the great naturalist Alexander von Humboldt, on the 250th anniversary of his birth.
koala

Are Koalas Really Going Extinct?

A report from the Australian Koala Foundation declaring koalas "functionally extinct" has caused a confusing scare. What does it mean?
Brain organoid

Is It Ethical to Grow a Brain in a Petri Dish?

Brain organoids could be the key to understanding brain diseases, which is why we should think carefully about how far we are prepared to take them.