California Feeling The Impact Of Urban Heat Island Effect

Increases in average temperatures are mostly caused by urbanization and not greenhouse warming argue authors of a recent study.

1 minute read

March 30, 2007, 12:00 PM PDT

By Christian Madera @http://www.twitter.com/cpmadera


"Average temperatures across California rose slightly from 1950 to 2000, with the greatest warming coming in the state's big cities and mostly caused by urbanization -- not greenhouse gases -- authors of a study released on Wednesday said.

The study found that average temperatures in California rose nearly 2 degrees Fahrenheit (nearly one degree Celsius) in the second half of the 20th century, led by large urban centers such as San Francisco and Southern California.

"Everybody's talking about the carbon coming out of the SUV exhaust or the coal plant, but in the past 50 years in California the bigger impact has been urbanization and suburbanization," said Bill Patzert of NASA's Jet Propulsion Laboratory, one of the study's authors."

Thursday, March 29, 2007 in Reuters

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

Red 1972 Ford Pinto with black racing stripes on display with man sitting in driver's seat.

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto

The Tesla Cybertruck was recalled seven times last year.

July 2, 2025 - Mother Jones

Close-up of park ranger in green jacket and khaki hat looking out at Bryce Canyon National Park red rock formations.

National Parks Layoffs Will Cause Communities to Lose Billions

Thousands of essential park workers were laid off this week, just before the busy spring break season.

February 18, 2025 - National Parks Traveler

Paved walking path next to canal in The Woodlands, Texas with office buildings in background.

Retro-silient?: America’s First “Eco-burb,” The Woodlands Turns 50

A master-planned community north of Houston offers lessons on green infrastructure and resilient design, but falls short of its founder’s lofty affordability and walkability goals.

February 19, 2025 - Greg Flisram

Screenshot of shade map of Buffalo, New York with legend.

Test News Post 1

This is a summary

0 seconds ago - 2TheAdvocate.com

Red 1972 Ford Pinto with black racing stripes on display with man sitting in driver's seat.

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto

The Tesla Cybertruck was recalled seven times last year.

18 minutes ago - Mother Jones

test alt text

Test News Headline 46

Test for the image on the front page.

March 5 - Cleantech blog