Space & Innovation

Pentagon: Climate Change Poses Immediate Security Risk

Global warming poses immediate risks to U.S. national security, the Pentagon warned on Monday.

Rising global temperatures, rapidly melting arctic ice and other effects of climate change are posing immediate risks to U.S. national security and military and humanitarian operations, the Pentagon warned on Monday.

In a comprehensive report billed as a roadmap for adapting to climate change, the Defense Department said it has begun to boost its "resilience" and ensure mission readiness is not compromised in the face of rising sea levels, increasing regularity of natural disasters, and food and water shortages in the developing world.

VIDEO: What Do Our Oceans Reveal About Global Warming?

"Climate change will affect the Department of Defense ability to defend the nation and poses immediate risks to U.S. national security," according to the report.

"A changing climate will have real impacts on our military and the way it executes its missions."

The roadmap aims to adapt to climate change in part by integrating the risks into war games, strategic defense planning and how the military stores and transports supplies.

In this collection of compelling images from around the web, sea monkeys make waves, fall colors are seen from space and a deadly volcanic eruption covers a temple in ash. Check out these and other amazing aerial and satellite images from around the world. Above, a National Weather Service satellite image from Sept. 30 shows the temperature of Earth's surface as a cold front moving across the plains brought severe thunderstorms to areas in South Dakota and Nebraska.

Earth Shots: Must-See Planet Pics (Sept. 21)

This aerial picture taken on Sept. 28, 2014 shows rescue workers and Self Defense Force soldiers searching for missing climbers and survivors among ash-covered cottages and a Shinto shrine (top) on the summit of Mount Ontake, one day after the volcano erupted in central Japan. Dozens of hikers were killed and hundreds were trapped at the popular tourist destination.

PHOTOS: Hiker Captures Japanese Volcano Eruption

An estimated 35,000 walruses gathered last week on an island near Point Lay, Alaska. The walruses, which reside in the Chukchi Sea, came ashore to rest, which they will do between dives for food. Walruses typically use sheets of floating ice as rest areas between swims, but such ice platforms melted away in mid-September.

VIDEO: Ice Disappears, Walruses Head for Land

Data from the Landsat 8 Earth observation satellite provides a view of a phytoplankton bloom (green and blue swirls) near the Pribilof Islands off the coast of Alaska, in the Bering Sea. The turquoise waters are likely colored by a type of phytoplankton called coccolithophores.

BLOG: Lakes Around the World Are Rapidly Disappearing

NASA’s Terra satellite captured these views of fall colors around the Great Lakes and New England.

PHOTOS: Leaf Peepers Only: Fall Colors Around the World

European satellite data shows that gravity has dipped in West Antarctica because of melting ice. The brownish areas in the graphic are places where the variation has been greatest.

BLOG: Earth's Gravity Dips From Antarctic Ice Loss

In this picture taken by NASA astronauts, fires are creating a pall of smoke over the Amazon rainforest. The tan areas along the top of the photo are already-deforested sections of the Brazilian state of Mato Grosso.

BLOG: Brazil Refuses To Join UN Pact To End Deforestation

At sunset, sea monkeys (brine shrimp, in white above) move en masse to the ocean surface, creating currents that have similar power to wind and tides, a new study reports. At sunset, the swim down away from predators, creating strong currents that affect circulation patterns around the world's oceans.

Tiny Sea Monkeys Create Giant Ocean Currents