The boating industry is making efforts to offer a greener product.
Many caribou herds have lost more than half their number from the maximums of recent decades.
Filmmaker Ken Burns discusses his latest project: a series on the National Parks System.
Shifting climates and needed upkeep are issues facing America’s treasured spots.
Scientists say the Greenland ice sheet is losing about 7 billion cubic feet of ice a year. Now, they are just finally beginning to uncover some reasons why its been shrinking.
A study found that up to 30 percent of the geese now forgo migrating to warmer regions of the Pacific coast.
Alaska's marine waters are turning acidic from absorption of greenhouse gases faster than tropical waters.
Scientists wonder whether rising CO2 may trigger something else that further warms the climate
Researchers found that two of the Tetons' biggest glaciers have lost more than 20 percent of their surface area since the late 1960s.
Scientists found that eight species had become between 2 to 4 percent smaller over the past century.
A new study finds that hydrofluorocarbons could become a significant factor in future warming.
Tuvalu, a nation of nine islands, is taking steps to completely rely on renewable energy by 2020.
Column: One size doesn't fit all when it comes to coping with the effects of climate change.
Lawmakers craft a bill that will move the US to a far cleaner energy policy.
New discoveries about reefs, pinniped evolution, and climate change.
A recession may be a cruel remedy for environmental degradation. But some experts say the earth welcomes the breathing room.
Agency’s move lays the foundation for expanding US regulation of thousands of companies.
Thriving forest pests and melting glaciers may make parks a warning system for climate change effects.
Competition for resources, ‘climate migrants,’ failed states are among top concerns.