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Edgar McGregor Profile picture
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Jun 14 • 8 tweets • 3 min read
BREAKING: This evening alone, the United States of America has been struck by no fewer than 6 natural disasters.

A thread on these events. 🧵

First, a massive flash flood has torn through Yellowstone National Park destroying roads and bridges.

Second, a powerful derecho has torn through the Midwest with wind speeds of 80 miles an hour and torrential rainfall:
Next, wildfires have exploded across the desert southwest with fires in Arizona and New Mexico being fanned by high winds:
Also, wildfires are torching parts of Alaska during what is now one of the largest starts to the wildfire season on record up there:

Also included in this series is an exceptional heatwave driving power demand surges across Texas, highest demand on record for ERCOT
This heatwave setting temperature records across large swaths of the continent, with all-time records falling in several locations. This heat is oppressive, with feels-like temperatures near 110°F in Dallas.
It's happening. The climate crisis is here.

Each one of these disasters was possible before anthropomorphic climate change, but now they've become stronger and more frequent.

We CANNOT adapt to this. We must act now! This is getting intense!
Another disaster ongoing: The megadrought out west. Lake Mead, the largest reservoir in the United States, is now at it's lowest water level since it was filled nearly a century ago.

We're down to 28% capacity as of yesterday.

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More from @edgarrmcgregor

Edgar McGregor Profile picture
Nov 8, 2018
This is Paradise, California at 9:30 AM this morning. People are in traffic fleeing from a wildfire. The sun is completely blocked out by smoke.

This is NOT the new normal in California because this will continue to get worse in the years to come.

Lets discuss why 1/
Wildfires need 3 things to become massive infernos:

- Lots of dry fuel
- High winds
- Low humidity

I will be discussing each one and how they are changing to make wildfires both hotter and bigger in California.
1. Dry Fuel

Many may think that with less rain, plants would be less abundant and less "fuel" would grow in the first place. While California is drying out, rain still falls heavily during the winter. According to NOAA, annual average rainfall ranges between just 3 inches
Read 16 tweets
Edgar McGregor Profile picture
Oct 14, 2018
Thread:

It has been exactly 3 years to the hour since I woke up to climate change.

It wasn't a speech, a report or a scientist that told me. It was the weather itself that showed me climate change. Here is my story:
On October 13th, 2015, my hometown, Pasadena, CA had just exited a massive heatwave. Temperatures reached 103F on the 10th, while lows were in the low 70s.

Despite the heatwave being over & the highs dropping to the 90s, the lows continued to warm, day after day.
By the 13th, even though the high was a "cool" 96F, the low was a whopping 25F above the per-industrial average at 73F. October was, to me, the first month of fall when temperatures cooled off and the rain returned. October 2015, however, finished as the hottest October ever.
Read 24 tweets

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