Signs of a Changing Climate: Record Heat Waves Across the Globe

wind fire

A monstrous heat wave is slated to strike Portugal and Spain this weekend — the latest in a series of record-breaking, at times deadly, temperature surges around the globe. Sand-filled winds which blow from the Sahara in Africa are expected to bring about absurdly high temperatures of 118°F to 122°F, which surpass the hottest temperature ever recorded in continental Europe (118.4°F, 1977 Athens).

climate anomalies

Selected climate anomalies and events map during June 2018. Photo credit: NOAA

The danger is expected to continue after the wave dissipates. Wildfires are a likely successor to extreme heat; they swept Portugal and Spain last fall, killing at least 35 people.

Those looking to predict other disastrous consequences of this new heat wave need only review the extraordinary events of these past couple of months. In South Korea, an ongoing heat wave lasting a fortnight left 29 dead; Wednesday’s temperature of 95°F is the highest recorded in more than a century.

After experiencing more than 40 related casualties since early July, Japan declared its latest heat wave a natural disaster.

Finland recorded the hottest July in its history.

Death Valley, California, named partly for its lethal heat, went a step further and posted the most scorching month ever anywhere — for the second year in a row, and there are wildfires right now in California and Colorado.

climate anomalies

Selected climate anomalies and events map during June 2018.
Photo credit: NOAA

This summer’s streak of broken records has alarmed US climate scientists, the vast majority of whom attribute the frequency and severity of recent heat waves to climate change — a phenomenon denied by President Donald Trump and prominent members of his party.

In a study published last year, Stanford scientist Noah Diffenbaugh found that climate change increased the breakout rate of heat milestones across more than 80% of Earth’s surface area.

Watch the videos below to learn more about the impact of extreme temperatures.


Related front page panorama photo credit: Adapted by WhoWhatWhy from sweaty face (Michael / Flickr – CC BY-NC 2.0).


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