Features

In Rush for Key Metals, Canada Ushers Miners to Its Fragile North

By Ed Struzik

INTERVIEW

Can We Mine the World’s Deep Ocean Without Destroying It?

By Richard Schiffman

As Africa Loses Forest, Its Small Farmers Are Bringing Back Trees

By Fred Pearce

How Warming Ruined a Crab Fishery and Hurt an Alaskan Town

By Andrew S. Lewis

Beyond the Yuck Factor: Cities Turn to ‘Extreme’ Water Recycling

By Jim Robbins

As Plastics Keep Piling Up, Can ‘Advanced’ Recycling Cut the Waste?

By Judith Lewis Mernit

Are Sea Cucumbers a Cleanup Solution to Fish Farm Pollution?

By Kiley Price

INTERVIEW

Beyond Factory Farms: A New Look at the Rights of Animals

By Richard Schiffman

The Upper Atmosphere Is Cooling, Prompting New Climate Concerns

By Fred Pearce

As Ocean Oxygen Levels Dip, Fish Face an Uncertain Future

By Nicola Jones

INTERVIEW

This Zambian Took on a U.K. Mining Giant on Pollution and Won

By Jocelyn C. Zuckerman

Avian Flu Outbreaks in Marine Mammals Mark New Era for Deadly Virus

By Andrew S. Lewis

INTERVIEW

Finland Drained Its Peatlands. He’s Helping Bring Them Back

Hippos Are in Trouble. Will an Endangered Listing Save Them?

By Adam Welz

Long Reviled as ‘Ugly,’ Sea Lampreys Finally Get Some Respect

By Ted Williams

ANALYSIS

As Projects Decline, the Era of Building Big Dams Draws to a Close

By Jacques Leslie

New Research Sparks Concerns That Ocean Circulation Will Collapse

By Fred Pearce

A Golden Spike Would Mark the Earth’s Next Epoch: But Where?

By Christian Schwägerl

INTERVIEW

Deep in the Heart of Texas, an Uphill Fight for Clean Air for All

By Beth Gardiner

Pricing Nature: Can ‘Biodiversity Credits’ Propel Global Conservation?

By Zach St. George

For Uganda’s Vanishing Glaciers, Time Is Running Out

By John Wendle