Commonly used climate models may be significantly underestimating the risk of floods this century, according to a new study by Yale researchers.
Accurately pinpointing the magnitude and frequency of extreme rainfall hinges not only on tracking rainfall, but also on the way researchers model climate change, the study says. Previous studies averaged all the available climate models in order to figure out how much rain the planet will get in coming decades, but the Yale researchers only used the group of models that predict that climate change will result in an increase in precipitation efficiency—how much of a falling raindrop reevaporates into the atmosphere before it hits Earth’s surface.
They excluded models that forecast a decrease, since scientific observations over the past two decades indicate that climate change is yielding an increase in precipitation efficiency. The results show that it is possible that there will be as much as a twofold increase in the volume of extreme rainfall in the 21st century compared to what previous studies estimated.
Lawmakers could help prepare for extreme rainfall via fund initiatives that harden home infrastructure, such as rooftops, and improve drainage systems.
Related Stories
Codes and Standards | Sep 12, 2017
Washington, D.C. is first LEED Platinum city in the world
All city government buildings are powered by renewables.
Codes and Standards | Sep 11, 2017
Natural solutions would be most effective flood resilience policies for Houston
New green infrastructure should be part of rebuild.
Codes and Standards | Sep 8, 2017
Los Angeles luxury high-rise is first U.S. apartment building to achieve WELL Multifamily certification
Hollywood Proper Residences have verified indoor air and water quality features.
Codes and Standards | Sep 7, 2017
More than half of Houston properties at high or moderate risk of flooding are not in FEMA flood zone
Properties outside of these zones are not required to carry flood insurance.
Codes and Standards | Sep 6, 2017
Seventy percent of contractors have trouble finding workers
AGC survey indicates that fewer companies may be able to bid on projects.
Codes and Standards | Sep 5, 2017
New CTBUH initiatives to investigate link between fire and façades
In wake of Grenfell tragedy, Council forms new workgroup.
Codes and Standards | Sep 1, 2017
U.S. markets with the largest hotel construction pipeline
New York has the largest hotel construction pipeline of any U.S. market.
Codes and Standards | Aug 30, 2017
Trump rescinds elevation requirements for federally funded buildings and infrastructure
Flood protection on subsidized housing, hospitals, and other public buildings rolled back.
Codes and Standards | Aug 30, 2017
Stormwater runoff mitigation pays off for some building owners
Rain gardens, green roofs, cisterns, and rainwater recycling add value.
Codes and Standards | Aug 28, 2017
Commercial properties address state carbon-reduction policies
EV charging stations, batteries, and microgrid technology are all part of effort to meet demand for cleaner power.