Arctic shows no sign of returning to reliably frozen region of recent past decades
Despite relatively cool summer temperatures, observations in 2017 continue to indicate that the Arctic environmental system has reached a ‘new normal’, characterized by long-term losses in the extent and thickness of the sea ice cover, the extent and duration of the winter snow cover and the mass of ice in the Greenland Ice Sheet and Arctic glaciers, and warming sea surface and permafrost temperatures.
Arctic Report Card 2017
Arctic Report Card 2017 – Home
A tangle of politics and problems may force yet another delay in long-sought updates to the broke, beleaguered U.S. National Flood Insurance Program (NFIP). Congress has the unenviable task of putting NFIP back in the black without raising rates too quickly on folks who can’t afford to leave vulnerable coastal homes. And the weather isn’t helping.
The NFIP was due for reauthorization in September, after several years of challenge in the wake of the enormously costly Hurricane/Superstorm Sandy in 2012. Then came Hurricanes Harvey, Irma, and Maria this year—which complicated matters further by adding another $10-plus billion to the program’s $25-billion debt.
Congress passed a temporary extension of the NFIP that runs out in early December. There’s now a good chance that another extension will be needed, perhaps into 2018. The 21st Century Flood Reform Act, a House bill that appeared this week to be nearing a vote, instead found itself bottled up in committee. Several other draft bills in the House and Senate this year have failed to gain traction.
Continue reading here
Highlights of the U.S. Global Change Research Program
Climate Science Special Report
The climate of the United States is strongly connected to the changing global climate. The statements below highlight past, current, and projected climate changes for the United States and the globe. Global annually averaged surface air temperature has increased by about 1.8°F (1.0°C) over the last 115 years (1901–2016). This period is now the warmest in the history of modern civilization. The last few years have also seen record-breaking, climate-related weather extremes, and the last three years have been the warmest years on record for the globe. These trends are expected to continue over climate timescales.
This assessment concludes, based on extensive evidence, that it is extremely likely that human activities, especially emissions of greenhouse gases, are the dominant cause of the observed warming since the mid-20th century. For the warming over the last century, there is no convincing alternative explanation supported by the extent of the observational evidence.
Read more →
From Bali To Marrakech: A Decade Of International Climate Negotiations (2017)
MESSAGE FROM THE EXECUTIVE SECRETARY
Since its entry into force in 1994, the United Nations Framework Convention on Climate Change has been at the centre of international efforts to address global warming and the rising risks it represents to people and economies across the globe. The adoption and early entry into force of the Paris Agreement was a monumental achievement that has put every nation on Earth on a clear pathway and with a clear destination for delivering a safer and more secure future.
Read more →
By Kmusser – Own work, Elevation data from SRTM, hydrologic data from the National Hydrography Dataset, urban areas from Vector Map, all other features from the National Atlas., CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=12520461
EPA. 2015. Climate Change in the United States: Benefits of Global Action. United States Environmental Protection Agency, Office of Atmospheric Programs, EPA 430-R-15-001.
About this Report
This report summarizes and communicates the results of EPA’s ongoing Climate Change Impacts and Risk Analysis (CIRA) project. The goal of this work is to estimate to what degree climate change impacts and damages to multiple U.S. sectors (e.g., human health, infrastructure, and water resources) may be avoided or reduced in a future with significant global action to reduce GHG emissions, compared to a future in which current emissions continue to grow. Importantly, only a small portion of the impacts of climate change are estimated, and therefore this report captures just some of the total benefits of reducing GHGs.
Read more →
Well Under 2 Degrees Celsius: Fast Action Policies to Protect People and the Planet from Extreme Climate Change. Report of the Committee to Prevent Extreme Climate Change (2017)
Climate change is becoming an existential threat with warming in excess of 2°C within the next three decades and 4°C to 6°C within the next several decades. Warming of such magnitudes will expose as many as 75% of the world’s population to deadly heat stress in addition to disrupting the climate and weather worldwide. Climate change is an urgent problem requiring urgent solutions. This report lays out urgent and practical solutions that are ready for implementation now, will deliver benefts in the next few critical decades, and places the world on a path to achieving the longterm targets of the Paris Agreement and near-term sustainable development goals.
Read more →
2017 – Draft of the US Climate Change Report
A draft report by scientists from 13 federal agencies, which has not yet been made public but was obtained by The New York Times, concludes that Americans are feeling the effects of climate change right now. The report was completed this year and is part of the National Climate Assessment, which is congressionally mandated every four years.