Research uncovers more evidence for possibly decades-long droughts. Climate change is the likely culprit in effects that may challenge infrastructure and agricultural output throughout the century.
Although California’s current four-year dry spell may not be directly related, climate scientists have discovered evidence suggesting that the western states may have to contend with decades-long droughts. These so-called "megadroughts" would have a magnitude unprecedented for at least the past thousand years.
The hypothesized cause is nothing new: "research suggests that rising temperatures connected to climate change—not necessarily a decrease in precipitation—will boost the risks of drought far beyond that caused by historic natural variability." Increased evaporation will make it difficult to retain existing reservoirs, while a hotter climate will drive greater demand for irrigation and municipal water.
Eric Holthaus reports on the scientists' methodology and potential wide-reaching effects. Long-term, these may include economic repercussions and lifestyle changes for "tens of millions of people from San Francisco to Las Vegas and from Dallas to Des Moines."
FULL STORY: The United States of Megadrought
Wildfires and Climate Change
Study links wildfires to climate change.
Department of the Interior Forced to Intervene on the Colorado River
More questions than answers on the Colorado River this week as the federal government failed to deliver on threats to force Southwest states to cut back on water use.
Declining Water Levels Trigger ‘Stage 1’ Drought Response in Austin
The effects of the megadrought in the American Southwest are reaching into Texas.
Maui's Vacation Rental Debate Turns Ugly
Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.
Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.
In Urban Planning, AI Prompting Could be the New Design Thinking
Creativity has long been key to great urban design. What if we see AI as our new creative partner?
Cal Fire Chatbot Fails to Answer Basic Questions
An AI chatbot designed to provide information about wildfires can’t answer questions about evacuation orders, among other problems.
What Happens if Trump Kills Section 8?
The Trump admin aims to slash federal rental aid by nearly half and shift distribution to states. Experts warn this could spike homelessness and destabilize communities nationwide.
Sean Duffy Targets Rainbow Crosswalks in Road Safety Efforts
Despite evidence that colorful crosswalks actually improve intersection safety — and the lack of almost any crosswalks at all on the nation’s most dangerous arterial roads — U.S. Transportation Secretary Duffy is calling on states to remove them.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Appalachian Highlands Housing Partners
Gallatin County Department of Planning & Community Development
Heyer Gruel & Associates PA
Mpact (founded as Rail~Volution)
City of Camden Redevelopment Agency
City of Astoria
City of Portland
City of Laramie