Using statistically modeled maps drawn from satellite data and other sources, U.S. Geological Survey scientists have projected that the near-surface permafrost that presently underlies 38 percent of boreal and arctic Alaska would be reduced by 16 to 24 percent by the end of the 21st century under widely accepted climate scenarios. Permafrost declines are more likely in central Alaska than northern Alaska.
Northern latitude tundra and boreal forests are experiencing an accelerated warming trend that is greater than in other parts of the world. This warming trend degrades permafrost, defined as ground that stays below freezing for at least two consecutive years. Some of the adverse impacts of melting permafrost are changing pathways of ground and surface water, interruptions of regional transportation, and the release to the atmosphere of previously stored carbon.
“A warming climate is affecting the Arctic in the most complex ways,” said Virginia Burkett, USGS Associate Director for Climate and Land Use Change. “Understanding the current distribution of permafrost and estimating where it is likely to disappear are key factors in predicting the future responses of northern ecosystems to climate change.”
In addition to developing maps of near-surface permafrost distributions, the researchers developed maps of maximum thaw depth, or active-layer depth, and provided uncertainty estimates. Future permafrost distribution probabilities, based on future climate scenarios produced by the Intergovernmental Panel on Climate Change (IPCC), were also estimated by the USGS scientists. Widely used IPCC climate scenarios anticipate varied levels of climate mitigation action by the global community.
These future projections of permafrost distribution, however, did not include other possible future disturbances in the future, such as wildland fires. In general, the results support concerns about permafrost carbon becoming available to decomposition and greenhouse gas emission.Current probability of near-surface permafrost in Alaska. Future scenarios. (High resolution image)
AUSTIN, Texas—Texans who sustained damage or losses from the severe storms, tornadoes, straight-line winds and flooding that occurred Oct. 22 through Oct. 31 can now register for disaster assistance with the Federal Emergency Management Agency (FEMA).
The presidential disaster declaration of Nov. 25 makes federal assistance available to eligible individuals and business owners in 15 counties: Bastrop, Brazoria, Caldwell, Comal, Galveston, Guadalupe, Hardin, Harris, Hays, Hidalgo, Liberty, Navarro, Travis, Willacy and Wilson.Language English
FEMA Mitigation Advisers Offer Guidance to Flood Survivors in Charleston, Darlington, Dorchester, Greenwood, Horry and Richland Counties
COLUMBIA, S.C. – As South Carolinians rebuild and repair after the recent historic floods, the Federal Emergency Management Agency and local home improvement stores have teamed up to provide free information, tips and literature on making homes stronger and safer.
FEMA mitigation specialists will be on hand to answer questions and offer home improvement tips to prevent and lessen damage from future disasters. Most of the information is geared towards do-it-yourself work and general contractors.Language English
COLUMBIA, S.C. – Just a little over a week remains for survivors of the Oct. 1-23 storms and flooding in South Carolina to register with the Federal Emergency Management Agency and submit loan applications to the U.S. Small Business Administration.
The deadline to register for federal disaster assistance is Friday, Dec. 4.Language English
Texas Receives Federal Disaster Declaration; Texans Urged to Apply for Disaster Aid
DENTON, Texas – Texans affected by the recent severe storms should register now with the Federal Emergency Management Agency (FEMA).Language English
Following is a summary of key federal disaster aid programs that can be made available as needed and warranted under President Obama's disaster declaration issued for the State of Texas.
Assistance for Affected Individuals and Families Can Include as Required:Language English
WASHINGTON – The U.S. Department of Homeland Security’s Federal Emergency Management Agency (FEMA) today announced that federal disaster assistance has been made available to the state of Texas to supplement state, tribal and local recovery efforts in the area affected by severe storms, tornadoes, straight-line winds, and flooding during the period of October 22-31, 2015.Language English
DNREC’S Division of Parks and Recreation receives major land donation from Nemours Foundation for Alapocas Run State Park
SACRAMENTO, Calif. – The deadline for Calaveras and Lake county wildfire survivors to register with FEMA has passed, but various forms of disaster assistance remain available. Survivors who registered with the Federal Emergency Management Agency are urged to stay in touch with the agency.
“Even though the DRCs are closed, FEMA remains in California to work with the state and local governments to provide assistance with recovery,” said Tim Scranton, Federal Coordinating Official for this disaster. “FEMA will remain as long as needed.”Language English
COLUMBIA, S.C. –Survivors of South Carolina flooding Oct. 1-23 can get help with one phone call.
Call the Federal Emergency Management Agency helpline at 800-621-3362 for information about many federal disaster assistance-related matters. Lines are open 7 a.m. to 10 p.m. seven days a week. Survivors who use TTY may call 800-462-7585; those who use 711/VRS can call 800-621-3362. They can also visit www.disasterassistance.gov.Language English
COLUMBIA, S.C. – The disaster recovery center formerly at the Sumter County Civic Center will reopen at the following location at 8 am. Tuesday, Nov. 24:
Central Carolina Technical College building located at 853 Broad St. in Sumter
The center will be open six days a week Monday through Saturday from 8 a.m. to 7 p.m. until further notice. The center will be closed Thanksgiving Day.Language English
SACRAMENTO, Calif. – Today is the last day that wildfire survivors in Calaveras and Lake counties can register to receive housing or other needs assistance grants from the Federal Emergency Management Agency (FEMA) and apply for disaster recovery loans from the U.S. Small Business Administration (SBA).Language English
SACRAMENTO, Calif. – Many pets were left behind to fend for themselves during the wildfires in California’s Calaveras and Lake counties resulting in serious injuries, death or disappearance.
This occurred because the fire came so fast many survivors had no time to save the animals.Language English