Jul 22, 2012
1 min read

Explaining Explosion of Daily Record Highs Easy as Pie

By Andrew Freedman / climatecentral.org

As the climate has warmed during the past several decades, there has been a growing imbalance between record daily high temperatures in the contiguous U.S. and record daily lows. A study published in 2009 found that rather than a 1-to-1 ratio, as would be expected if the climate were not warming, the ratio has been closer to 2-to-1 in favor of warm temperature records during the past decade (2000-2009). This finding cannot be explained by natural climate variability alone, the study found, and is instead consistent with global warming.

When you look at individual years, the imbalance can be more stark. For example, through late June 2012, daily record highs were outnumbering record daily lows by a ratio of 9-to-1.The study used computer models to project how the records ratios might shift in future decades as the amount of greenhouse gases in the air continues to increase. The results showed that the ratio of daily record highs to daily record lows in the lower 48 states could soar to 20-to-1 by mid-century, and 50-to-1 by 2100.

 

The shifting odds in favor of more daily record high temperatures being set compared to daily record low temperatures. Click on the image for a larger version. Credit: Climate Central.

KEEP OUR LIBRARY FREE
$5/month keep us freely available to all. No paywalls for 99% of content, no ads, just people-powered media. Subscribe here.
Climate Change Explore All
Videos by Our Changing Climate
Trending Videos Explore All
Trending Articles Explore All
Recent Documentaries Explore All
Video Deep Dives Explore All
What People Are Watching Now
The Regenerative Design (R)Evolution - Daniel Christian Wahl
Support independent media for a more free, regenerative and democratic society. 



Subscribe for $5/month to support us and watch over 50 patron-exclusive documentaries.

Share this:

Share