Stories by Lauren Morello

A 60-year drought that scorched the Southwest during the 12th century may be a harbinger of things to come as greenhouse gases warm the Earth

How well do computer climate models predict the behavior of clouds?

Climate's influence on Himalayan glaciers is still a looming concern for many scientists and governments, which worry about how warming will affect the region's water cycle

Without emissions cuts, the world's oceans could become 150 percent more acidic by the end of the century, according to a new report

The world's coastal wetlands may be more vulnerable to rising seas than scientists had suspected

Tropical marine ecosystems face a troubled future in a warming world

Scientists blame unusually warm ocean temperatures this year for the mass devastation of the world's corals

According to an international team of climate scientists, warming continues to shrink the snow and ice cover that defines the Arctic, signaling the region's shift

Amid calls for more research, a United Nations convention on biodiversity considers a proposal to ban geoengineering solutions to global warming

For the third time in four years, a dearth of sea ice has forced walruses ashore in Alaska

Tiny temperature increases in the tropics could have a big impact on cold-blooded insects, lizards and amphibians

Now that some global warming is a foregone conclusion, the U.S. must develop strategies to adapt argues a new government report

Public health experts urged Congress to allow EPA to regulate greenhouse gas emissions, citing health risks

Forest ecologists watch as Alaskan forests struggle with environmental changes brought on by global warming

A new study based on NASA satellite data and meteorological data shows that the amount of carbon absorbed by Earth's plants and trees fell in the past decade

As the Arctic warms, the icescape on which both walruses and people depend is changing

Combining high-tech tools with a database of bird sightings may help indicate how climate change is affecting bird movement in the U.S.

Cutting the black carbon, or soot, produced by burning fossil fuels, vegetation, dung and other sources could reduce global warming

Researchers find trouble among phytoplankton, the base of the food chain, which has implications for the marine food web and the world's carbon cycle

The melting of sea ice is exposing more ocean waters in the Arctic, but they are showing a limited ability to dispose of CO2, according to a new study

Civilian researchers have signed an agreement with the U.S. Navy to revive a dormant program that uses the vessels to collect information on parts of the Arctic's ice and ocean that normally lie beyond scientists' reach

A new study finds protecting the vast region would be equivalent to cutting the country's CO2 output by 5 percent

Puget Sound is becoming more acidic thanks to a combination of agricultural runoff and rising carbon dioxide levels in the atmosphere

National security experts said climate forecasters often focus on averages, or the most likely scenario, without determining the probability of an extreme climate shift