Climate

How hot was June 2020?

From NOAA’s Global Climate Report – June 2020: Averaged as a whole, the global land and ocean surface temperature for June 2020 was 0.92°C (1.66°F) above the 20th century average of 15.5°C (59.9°F), tying with 2015 as the third highest June temperature departure from average in the 141-year record. Nine of the …

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How do we calculate sea level?

If you aren’t sure how sea level is calculated then read NASA’s Sea Level 101: What determines the Level of the Sea? by Alan Buis (6/3/2020) . Here is one factor: If our ocean had no tides or currents, the sea surface would assume the shape of the geoid. These …

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How hot was May 2020?

From the NOAA Global Climate Report – May 2020: The global land and ocean surface temperature for May 2020 tied with 2016 as the highest in the 141-year record at 0.95°C (1.71°F) above the 20th century average of 14.8°C (58.6°F). The 10 warmest Mays have all occurred since 1998; however, the 2014–2020 …

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What is our wet bulb temperature limit?

From the climate.gov article Brief periods of dangerous humid heat arrive decades early  by Alison Stevens (5/12/2020): The paper authors used an index called “wet-bulb temperature” based on weather station temperature and humidity data. The reading, from a thermometer when covered in a wet cloth, is related to how muggy …

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How many billion-dollar disasters?

The Climate.gov article 2010-2019: A landmark decade of U.S. billion-dollar weather and climate disasters by Adam B. Smith (1/8/2020) reports: During 2019, the U.S. experienced a very active year of weather and climate disasters. In total, the U.S. was impacted by 14 separate billion-dollar disasters including: 3 major inland floods, 8 …

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How hot was April 2020?

For those of us living in the northeast or a good part of the U.S. we might have felt that April was cold and it was. It is easy to use that as evidence that climate change is “fake news” yet it is good to keep in mind that if …

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How hot was March 2020?

From the NOAA Global Climate Report – March 2020: Averaged as a whole, the global land and ocean surface temperature for March 2020 was 1.16°C (2.09°F) above the 20th century average of 12.7°C (54.9°F) and the second highest in the 141-year record. Only March 2016 was warmer at 1.31°C (2.36°F). …

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How do we know 12,000 years of climate?

The Climate.gov article Nature’s archives: piecing together 12,000 years of Earth’s climate story by Alison Stevens (4/15/2020) provides an overview of paleoclimate proxies and links to a new database of these records. Paleoclimate proxies indirectly record climate and atmospheric conditions present when they formed or grew; air bubbles in ice cores sample …

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What is a gigatonne of ice?

The picture here is a snapshot from an animation by NASA in the article Visualizing the Quantities of Climate Change – Ice Sheet Loss in Greenland and Antarctica by Matt Conlen (3/9/2020) that shows a gigatonne of ice. A gigatonne isn’t much since Satellite data show that Greenland and Antarctica …

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