Global Warming May Trigger a 'Perpetual Food Crisis'

A new study predicts that by the mid- to late- 21st century, scorching summer temperatures may result in massive failures of heat-sensitive crops such as wheat.

1 minute read

January 12, 2009, 2:00 PM PST

By Michael Dudley


"The world faces a 'perpetual food crisis' because global warming will likely lead to massive and simultaneous crop failures in many regions, possibly as early as the period from 2040 to 2060, a new study says.

The finding, appearing in the journal Science, is based on climate models that suggest the worst heat waves of the past – such as the one in Europe in 2003 that killed at least 30,000 people – are likely to become the new normal summertime temperatures.

Although the trend to extreme heat becoming the new normal could start in some parts of the world by mid-century, well within the lifetimes of many people now alive, the researchers are confident it will become a global phenomenon between 2080 and 2100.

Rising temperatures will wither crops that are heat-sensitive, including staples such as wheat, possibly cutting yields by 20 per cent to 40 per cent, according to the study."

Friday, January 9, 2009 in The Globe and Mail

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 16, 2025 - Diana Ionescu

Streetcar and bus stopped at station on Market Street in San Francisco with Ferry Building visible in background.

Waymo Gets Permission to Map SF’s Market Street

If allowed to operate on the traffic-restricted street, Waymo’s autonomous taxis would have a leg up over ride-hailing competitors — and counter the city’s efforts to grow bike and pedestrian on the thoroughfare.

April 16 - San Francisco Examiner

Parklet with wooden benches and flower boxes on street in Ireland.

Parklet Symposium Highlights the Success of Shared Spaces

Parklets got a boost during the Covid-19 pandemic, when the concept was translated to outdoor dining programs that offered restaurants a lifeline during the shutdown.

April 16 - Streetsblog San Francisco

Bronze statue of homeless man (Jesus) with head down and arm outstretched in front of St. Matthew Cathedral in Washington D.C.

Federal Homelessness Agency Places Entire Staff on Leave

The U.S. Interagency Council on Homelessness is the only federal agency dedicated to preventing and ending homelessness.

April 16 - The New York Times