RT @NWSNHC: The 11 AM EDT advisory for Hurricane Lee has been issued by the NHC. Full details at: nhc.noaa.gov/#Lee

Join NHC Director Dr. Michael Brennan for a LIVE update on Hurricane Lee around 11:30 AM EDT via Facebook Live and the NHC YouTube Page at: youtube.com/user/NWSNHC

NHC_TAFB

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RT @NOAANCEI: 🥵 January–August 2023 was the second warmest such period on record.

😯 According to the #NCEI Global Annual Temperature Outlook, there is a 95% probability that 2023 will rank among the two warmest years on record. bit.ly/Global202308 #StateOfClimate

NOAA Climate.gov

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The Reef Futures team working on nutritional value published a study in @CurrentBiology exploring how #ClimateChange and overfishing jeopardise marine fisheries 🎣 🌍

Follow this link to know more about it➡️ eu1.hubs.ly/H05kWYS0

UNEP-WCMC

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Record August temperatures confirmed summer 2023 was the hottest summer (June, July, August) in @nasa’s temperature record, by a large margin.🥵

These record-breaking months continue a long-term warming trend due to human activities. go.nasa.gov/3PhidYw twitter.com/NASAEarth/status…

NASA Earth

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RT @globalcommonshq: NEW: Exponential growth in #EV sales is transforming the auto sector faster than currently predicted.

🚗 EVs are set to surpass 2/3 of global car sales by 2030.

⚡ This growth puts at risk nearly half of oil demand.

Read the new #SystemsChangeLab research ⬇️ @WRIClimate

WRI Climate

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RT @AniDasguptaWRI: EVs need to grow to 75-95% of passenger vehicle sales by 2030 to be consistent with a 1.5°C future.

In every country where EV sales reached 1%, they accelerated, following an S-curve pattern. The right investments can help unlock the transformation we need.

Countries like China, the Netherlands, and Norway have already shown that it is possible to grow EV sales fast enough to meet climate goals. See how exponential change gives other countries the opportunity to catch up in a new #SystemsChangeLab analysis: bit.ly/44VuCai - WRI Climate

WRI Climate

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RT @NWSNHC: SEP 14: Here are the latest updates from the 11 AM advisory on Hurricane Lee from the National Hurricane Center: youtube.com/live/yvU8xftFwRc…

For the latest forecast, please visit: Hurricanes.gov

NHC_TAFB

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NASA confirms this summer was the hottest summer since 1880 when modern recordkeeping began. This continues a long-term trend of rising temperatures caused by human activities. go.nasa.gov/3rfIjDk twitter.com/NASAClimate/stat…

NASA Climate

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To mark #OzoneDay (16 Sep), we celebrate what the #MontrealProtocol has accomplished.

Had we not ceased emitting HCFC’s, these ozone-depleting chemicals would have increased intensity of tropical storms & cyclones by 3x, and the world be 25% hotter today: ow.ly/ISZa50PKVMF

UNDP Climate

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Thu Sep 14 1630 UTC: A Hurricane Warning is in effect for the Atlantic High Seas. More info: hurricanes.gov/text/MIAHSFAT…

NHC_TAFB

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Hurricane Lee is slowly picking up speed as it moves north, intending to bring dangerous tropical conditions to New England and Southeast Canada

A Tropical Storm Warning is in effect for portions of Massachusetts, with hurricane watches for Maine, Nova Scotia, and New Brunswick.

CIRA

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RT @NASAGISS: The monthly GISTEMP surface temperature analysis update has been posted. The global mean temperature anomaly for August 2023 was 1.24°C above the 1951-1980 August average. go.nasa.gov/2PakncL

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NASA Announces Summer 2023 Hottest on Record
Summer of 2023 was Earth’s hottest since global records began in 1880, according to scientists at NASA’s Goddard Institute of Space Studies (GISS) in New York.

The months of June, July, and August combined were 0.41 degrees Fahrenheit (0.23 degrees Celsius) warmer than any other summer in NASA’s record, and 2.1 degrees F (1.2 C) warmer than the average summer between 1951 and 1980. August alone was 2.2 F (1.2 C) warmer than the average. June through August is considered meteorological summer in the Northern Hemisphere.

This new record comes as exceptional heat swept across much of the world, exacerbating deadly wildfires in Canada and Hawaii, and searing heat waves in South America, Japan, Europe, and the U.S., while likely contributing to severe rainfall in Italy, Greece, and Central Europe.

<picturehttps://nasa.gov/sites/default/files/styles/side_image/public/thumbnails/image/globaljjaanoms_gis_2023_chart_lrg.jpg?itok=H8Ez6X-s This chart shows the meteorological summer (June, July, and August) temperature anomalies each year since 1880. The warmer-than-usual summer in 2023 continues a long-term trend of warming, driven primarily by human-caused greenhouse gas emissions. Credit: NASA's Earth Observatory/Lauren Dauphin

“Summer 2023’s record-setting temperatures aren’t just a set of numbers – they result in dire real-world consequences. From sweltering temperatures in Arizona and across the country, to wildfires across Canada, and extreme flooding in Europe and Asia, extreme weather is threatening lives and livelihoods around the world,” said NASA Administrator Bill Nelson. “The impacts of climate change are a threat to our planet and future generations, threats that NASA and the Biden-Harris Administration are tackling head on.”

NASA assembles its temperature record, known as GISTEMP, from surface air temperature data acquired by tens of thousands of meteorological stations, as well as sea surface temperature data from ship- and buoy-based instruments. This raw data is analyzed using methods that account for the varied spacing of temperature stations around the globe and for urban heating effects that could skew the calculations.

The analysis calculates temperature anomalies rather than absolute temperature. A temperature anomaly shows how far the temperature has departed from the 1951 to 1980 base average.

“Exceptionally high sea surface temperatures, fueled in part by the return of El Niño, were largely responsible for the summer’s record warmth,” said Josh Willis, climate scientist and oceanographer at NASA’s Jet Propulsion Laboratory in Southern California.
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El Niño is a natural climate phenomenon characterized by warmer than normal sea surface temperatures (and higher sea levels) in the central and eastern tropical Pacific Ocean.

The record-setting summer of 2023 continues a long-term trend of warming. Scientific observations and analyses made over decades by NASA, National Oceanic and Atmospheric Administration (NOAA), and other international institutions have shown this warming has been driven primarily by human-caused greenhouse gas emissions. At the same time, natural El Niño events in the Pacific pump extra warmth into the global atmosphere and often correlate with the warmest years on record.

“With background warming and marine heat waves that have been creeping up on us for decades, this El Niño shot us over the hump for setting all kinds of records,” Willis said. “The heat waves that we experience now are longer, they’re hotter, and they’re more punishing. The atmosphere can also hold more water now, and when it’s hot and humid, it’s[...]

even harder for the human body to regulate its temperature.”

Willis and other scientists expect to see the biggest impacts of El Niño in February, March, and April 2024. El Niño is associated with the weakening of easterly trade winds and the movement of warm water from the western Pacific toward the western coast of the Americas. The phenomenon can have widespread effects, often bringing cooler, wetter conditions to the U.S. Southwest and drought to countries in the western Pacific, such as Indonesia and Australia.

“Unfortunately, climate change is happening. Things that we said would come to pass are coming to pass,” said Gavin Schmidt, climate scientist and director of GISS. “And it will get worse if we continue to emit carbon dioxide and other greenhouse gases into our atmosphere.”

NASA’s full temperature data set and the complete methodology used for the temperature calculation and its uncertainties are available online.

GISS is a NASA laboratory managed by the Earth Sciences Division of the agency’s Goddard Space Flight Center in Greenbelt, Maryland. The laboratory is affiliated with Columbia University’s Earth Institute and School of Engineering and Applied Science in New York.

For additional figures and maps related to this announcement, visit:

https://svs.gsfc.nasa.gov/14407

News Media Contacts

Karen Fox/Aries Keck
Headquarters, Washington
202-358-1100
karen.fox@nasa.gov/aries.keck@nasa.gov

Jacob Richmond
Goddard Space Flight Center
301-286-6255
jacob.a.richmond@nasa.gov



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The mining sector could potentially be a leader in achieving positive outcomes for #biodiversity as outlined at #COP15 🌿

UNEP-WCMC's Senior Programme Officer Sebastian Bekker explains how in this article ➡️ eu1.hubs.ly/H05g7bC0

UNEP-WCMC

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Woohoo! #GOESU, the newest and final satellite in @NOAA's GOES-R series, has completed the rigorous testing required to ensure it can withstand the harsh conditions of launch and space. 🚀

Learn more in this week's #EarthFromOrbit article and video: bit.ly/3RDZqtt

NOAA Satellites

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💦🌾Water in agriculture is central to feeding the planet & providing livelihoods.

Yet these objectives are threatened by growing demand for food, unsustainable resource use & increasing climate volatility. wrld.bg/kQgX50PGsQ1

Via @WorldBankWater

UN Biodiversity

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The September 2023 ENSO Outlook predicts El Niño will stick around through at least early 2024. But don't just take it from us, hear directly from the Pacific Ocean and tropical atmosphere, who join the blog to answer some questions: climate.gov/news-features/bl…

NOAA Climate.gov

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RT @UNBiodiversity: @UN Secretary-General @antonioguterres shared a message for the 20th anniversary of the Cartagena Protocol on Biosafety.

"We must make peace with nature. And biosafety is a vital part of those efforts."

More⬇️ bch.cbd.int/protocol/20thann…

UN Biodiversity

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