CIRUN - Climate Information: Responding to User Needs
Home > Environmental Change in the News

Environmental Change in the News

Scientists spot NYC-sized iceberg breaking from Antarctica

On an aerial survey of Antarctica, scientists discovered an 18-mile-long crack in an ice shelf that could produce an iceberg larger than New York City.

Researchers were measuring the Pine Island Glacier from a NASA plane when they found the break. While glaciers give birth to icebergs naturally, there's increasing concern that warming temperatures are destabilizing polar regions by eroding ice shelves that keep glaciers attached to the mainland. Without ice shelves, glaciers could melt into the ocean faster, raising sea levels.

The Pine Island glacier is "the largest source of uncertainty in global sea level rise projections," said NASA scientists in a statement. "It is likely that once the iceberg floats away, the leading edge of the ice shelf will have receded farther than at any time since its location was first recorded in the 1940s," NASA noted.

Researchers measured the crack at an average of 260 feet wide, and 820 feet apart at its widest. The deepest points were nearly 200 feet. "When the iceberg breaks free it will cover about 340 square miles of surface area," NASA stated. New York City comes in at 302 square miles. But the iceberg is nowhere near a record; that belongs to a 12,000-square-mile behemoth found in 1956 (MSNBC, Oct. 26). -- JP

Reprinted from ClimateWire with permission from Environment & Energy Publishing, LLC. 202-628-6500


Back to Top

Reprinted from climatewire-10-31_11-11 with permission from Environment & Energy Publishing, LLC. 202-628-6500.

A new 'toolkit' for communities worried about climate change impacts

Climate change could cause major changes in San Francisco Bay area waters

Climate change has contributed to dry Mediterranean winters, study finds

Climate change is making some birds bigger, study finds

Rocky Mountain glaciers have grown slightly this year, say scientists

Energy needs of the West and water scarcity are on a collision course -- study

DHS official warns climate migration could overwhelm U.S. borders, Coast Guard

Climate refugees could be pushed into high-risk areas -- study

Severe Texas drought felt in the global economy

Seaweed moves south, threatening marine ecosystems

Seas warm more slowly, but researchers find velocity of change threatens species

Scientists spot NYC-sized iceberg breaking from Antarctica

Tracking ocean temperatures can help predict severity of forest fire seasons -- study

Study attributes $14B in health costs to some climate-related events

Insurers see physical risks from climate change, but not investment dangers

Fires, disease will push Pacific Northwest trees out of existing habitat -- study

Energy company CEO says businesses must address climate change

Climate change evaporates part of China's hydropower production

Alaska's damage from freak storm described as 'minor'

Alaska faces severe storm with less ice to protect its coasts

Severe Texas drought starts to harm water quality

« Archive