Disappearing polar ice setting off alarms: The short-term consequences of Arctic (and Antarctic) warming may already be felt in other latitudes. The long-term threat to coastlines is becoming even more dire.

By Daisy DUNNE, Carbon Brief , 2018 SEA ICE Limiting warming to 1.5C could ‘substantially’ cut risk of ice-free Arctic summers Meeting the Paris Agreement’s aspirational target of limiting global warming to 1.5C above pre-industrial levels could “substantially” reduce the risk of sea ice-free summers in the Arctic, research shows. Two new studies find that, under 1.5C of warming, Arctic waters could experience …

NYC can expect a Hurricane Sandy-like flood every 5 years if we turn around fossil fuel use now (1.5 C) or three per decade if temps rise around 2 C

The study found that New York City can expect two Hurricane Sandy-like floods per decade by the year 2100 if global temperatures rise 1.5 degrees Celsius above pre-industrial levels, and three such events per decade if temperatures rise to 2.0 and 2.5 C. Credit: DJ Rasmussen, Princeton University The 2015 Paris climate agreement sought to stabilize global temperatures by limiting …

Floods Are Getting Worse, and 2,500 Chemical Sites Lie in the Water’s Path

New York Times, By Hiroko Tabuchi et al., 6 Feb 2018 Anchored in flood-prone areas in every American state are more than 2,500 sites that handle toxic chemicals, a New York Times analysis of federal floodplain and industrial data shows. About 1,400 are located in areas at highest risk of flooding. As flood danger grows — the consequence of a …

Hurricane Harvey studies: Yesterday’s 100-year storm is today’s 30-year storm

SCOTT K. JOHNSON – 12/17/2017, Ars Technica Enlarge Texas Military Department 104 The story explaining the incredible flooding in Houston during Hurricane Harvey has many chapters, ranging from meteorology to the history of groundwater use and development zoning. The chapter on climate change has already had a few pages filled in, thanks to a study quickly published by MIT hurricane scientist Kerry Emanuel. This week, …

Worst Case Effects of Hurricanes, Flooding, High Tides, and Sea Level Rise on DelDOT Assets

Delaware DOT and the University of Delaware, 2017 Draft Objectives What are the worst case effects of hurricanes, riverine flooding, high tides, and sea level rise inundation on DelDOT’s assets? The University of Delaware Water Resources Center (UDWRC) and Center for Applied Demography and Survey Research (CADSR) utilized climatic, hydrologic, hydraulic, and geographic information systems (GIS) data to document and …

Storms bringing extra rain with climate change and breakdown of polar vortex can lead to temperature lows

This year’s intense Atlantic storm season had another element tying its biggest events together: a monstrous, and sometimes deadly, amount of rain. Images of the flooded metropolises of Houston, Jacksonville, and San Juan with overtopped dams, billowing sewage, and flooded homes show that torrential rain can be one of the most devastating consequences of hurricanes, especially in urban areas where concrete makes …

“How are we going to pay for this?” agencies ask re: climate change costs?

Whether it is 4½ feet of sea level rise by 2100 that would leave more than 75,000 people in San Francisco and Alameda County vulnerable to inundation, and threaten $100 billion worth of existing property along the California coast… Or 137 large wildfires raging across 7.8 million acres in what might be the worst fire season ever Agencies are asking, …