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 | Jul 29, 2020
Crackdowns grow on construction firms that fail to follow COVID-19 guidelines
States, cities, and OSHA enforce social distancing, hand-washing regulations.
Codes and Standards | Jul 28, 2020
California utility adopts climate emergency declaration
Sacramento-region company commits to working towards carbon neutrality by 2030.
Codes and Standards | Jul 27, 2020
Updated Energy Plus and OpenStudio building energy modeling tools released
Software offers performance enhancements.
Codes and Standards | Jul 23, 2020
North Carolina will stop relying on FEMA flood mapping
State will identify flood zones on its own.
Codes and Standards | Jul 22, 2020
New version of IAPMO’s Water Demand Calculator is available
Enhanced features include selection between single- and multifamily buildings.
Codes and Standards | Jul 22, 2020
Mobile app calculates sound transmission for wood-framed assemblies
American Wood Council tool for floor-ceiling assemblies.
Codes and Standards | Jul 22, 2020
Architecture billings remain in negative territory, begin to stabilize
Fewer architecture firms report declining billings this month.
Codes and Standards | Jul 20, 2020
N.Y. construction firm to pay $1.5 million to settle sexual harassment claim
Managers said to demand sex for pay and OT opportunities.
Codes and Standards | Jul 16, 2020
Tips to make optimal use of salvaged materials
Integrated teams, staging warehouse, and looking early and often, among recommendations.
Codes and Standards | Jul 15, 2020
Georgia gives the go-ahead for tall mass timber construction
Standards review scheduled to be completed by July 2021.