Displaying items by tag: sea level rise

The Tennessee Valley states (TN, AL, MS) are among the most irresponsible in their languid pondering about climate change mitigation.  Illustration from the 5^th National Climate Assessment

Urgent investments in local solutions are needed now more than ever as climate impacts grow across the South

The 5^th National Climate Assessment, released this week by the U.S. Government, reports on the current climate trends, impacts and solutions across the country. It underscores the urgency and opportunities for meaningful climate action.

This year, it includes a chapter highlighting how climate is impacting our Southeastern landscape and communities, plus what trends we can expect in the years ahead. 

The report substantiates what we’ve been witnessing on the ground: Extreme heatwaves are already more common, sea level rise is encroaching into coastal communities and throughout the region, we’re seeing more flooding from increasingly unpredictable, volatile storms. According to the report, the country now sees a billion-dollar weather disaster every three weeks on average. In the 1980s, that average was every four months. 

Washington Post: Sea level rise will be investigated as one possible factor in Florida condo collapse

There is no direct evidence yet that increased subsidence on a Florida barrier island caused by rising sea levels and saltwater intrusion contributed to the devastating collapse of an ocean-front condo complex near Miami, but the possibility will be examined in coming weeks and months.

Rising sea levels threaten seaside properties on an increasing scale, undermining the unstable land on which they sit and further contributing to erosion of steel and concrete.

In the case of Champlain Towers South, developers used fill from denuded mangrove stands to support the 12-story building, which was built in 1981.

“Land subsidence is a gradual settling or sudden sinking of the surface when material that supports it is displaced or removed, according to the U.S. Geological Survey. Erosion and the disappearance of groundwater are two of several factors that cause it,” the Washington Post reported.

A least one engineer has said the collapse could be related to a structural problem, not subsidence. The investigation continues, as does the search for bodies.