Climate Change – It’s happening now
Here I would like to draw your attention to current information on the subject of climate change. This is primarily about climate-relevant data such as temperature anomalies, greenhouse gas emissions, sea ice expansion, glacier melting, sea level rise, reports on special weather extremes and phenomena such as El Nino should be mentioned.
Arctic sea ice extend again at record low level
The Arctic ice surface has reached its annual minimum. One of the lowest expansions since records began has been recorded. Sea ice in the Arctic Ocean reached its annual minimum in September. Despite the warm summer in the Arctic it was not enough for a new record minimum. At the beginning of September, slightly less than 4 million square kilometres were covered with more than 15 percent sea ice. Nevertheless, this is one of the lowest values since the start of measurements. It was interesting this summer that the sea ice had large gaps even in the immediate vicinity of the poles. Since the air above the water could warm up a little more, even thunderstorms formed in August.
This is a roaring glacial melt, under the bridge to Kangerlussiauq, Greenland where it’s 22C today and Danish officials say 12 billions tons of ice melted in 24 hours, yesterday. pic.twitter.com/Rl2odG4xWj
— Laurie Garrett (@Laurie_Garrett) August 1, 2019
A day which will make #weather history, says @dwd_presse. #Germany set a new national temperature record (provisional figure) of 42.6°C in Lingen, defeating the old record by 2.3 °C. There were 25 weather stations above 40 °C #heatwave pic.twitter.com/euV1KmEuc3
— WMO | OMM (@WMO) July 25, 2019
Record-breaking temperatures for June
Summer has barely begun, but temperature records are already being broken. Data released today show that the European-average temperature for June 2019 was higher than for any other June on record. Average temperatures were more than 2°C above normal and it has become the hottest June ever recorded.
Although not as persistent as that of summer 2018, this short heat wave, caused by a mass of hot air coming from the Sahara Desert, was intense. The five days of unusually high temperatures followed days with record-breaking temperatures further east in Europe. This led to the month as a whole being around 1°C above the previous record for June, set in 1999, and about 1°C higher than expected from the trend in recent decades.
Read more: Copernicus Climate Change Service
Heat Wave in India
— Times of India (@timesofindia) June 16, 2019
Steep Rises in CO2 for Seventh Year
Latest data shows steep rises in CO2 for seventh year – The Guardian. 04 June 2019
Rapidly melting sea ice in Greenland
Photograph lays bare reality of melting Greenland sea ice https://t.co/tEthfAbCKn
— The Guardian (@guardian) June 18, 2019
No Ice left in the Arctic after 2022
“The chance that there will be any ice left in the Arctic after 2022 is essentially zero,” Anderson said, with 80 percent of ice having melted in the last 35 years”
BTW this is Harvard chemistry professor who discovered CFCs were damaging the Ozone Layer https://t.co/DuI4iq20Lq
— Belinda Barnet (@manjusrii) June 19, 2019
Global Temperatures – May 2019 was 4th warmest month on record
The last 5 years saw the 5 warmest Mays on record (May 2016 warmest and May 2019 4th warmest). Last month was also the 43rd consecutive May and 413th consecutive month with above average global temperatures, per @NOAANCEIclimate https://t.co/ojKzN0vRm6 #climatechange pic.twitter.com/8vbdgrMFFE
— WMO | OMM (@WMO) June 19, 2019
Glaciers on Vancouver Island disappear
In the 1970s, #Vancouver Island was home to more than 170 glaciers. Rising global temperatures have reduced that number to five – with some scientists predicting they could all be gone within 25 years. via @SmithsonianMag https://t.co/G3lYntI2dF
— EGU (@EuroGeosciences) June 19, 2019
Meereisausdehnung in der Arktis auf saisonal historischem Tiefstand –4. Mai 2019
Nachdem die Meereisausdehnung in der Arktis ihre größte winterliche Ausdehnung am 12. März 2019 erreicht hat, hat die Schmelzsaison in der Nordpolarregion eingesetzt und einen für diesen Zeitpunkt im Jahr (23.04.2019) historischen Tiefstand erreicht. „Seit Ende März gibt es tagtäglich neue negative Rekordwerte“, bewertet Dr. Lars Kaleschke, Meereisphysiker am Alfred-Wegener-Institut die aktuelle Situation in der Arktis. Er ergänzt: „Der weitere Verlauf des Meereisrückgangs und die Eisverhältnisse im kommenden Sommer werden auch sehr spannend für uns im Hinblick auf den Start der großen MOSAiC-Expedition, die uns mit dem Forschungseisbrecher FS Polarstern ab Mitte September dieses Jahres für ein komplettes Jahr in die zentrale Arktis führen wird“.
Sea ice extent in the Arctic at a seasonally historic low
After the sea ice extent in the Arctic reached its largest winter extent on March 12, 2019, the melting season in the North Polar region began and reached a historic low for this time in the year (April 23, 2019). “Since the end of March there have been new negative records every day,” says Dr. Lars Kaleschke, sea ice physicist at the Alfred Wegener Institute, assessing the current situation in the Arctic. He adds: “The further course of the sea ice recession and the ice conditions in the coming summer will also be very exciting for us in view of the start of the large MOSAiC expedition, which will take us to the central Arctic for a complete year with the research icebreaker FS Polarstern from mid-September this year”.
Huge cavity in Antarctic glacier signals rapid decay
A gigantic cavity – two-thirds the area of Manhattan and almost 1,000 feet (300 meters) tall – growing at the bottom of Thwaites Glacier in West Antarctica is one of several disturbing discoveries reported in a new NASA-led study of the disintegrating glacier. The findings highlight the need for detailed observations of Antarctic glaciers’ undersides in calculating how fast global sea levels will rise in response to climate change.(Global climate Change, NASA) – Read more
Thwaites Glacier Collaboration: The collapse of the Thwaites Glacier in West Antarctica could significantly affect global sea levels. It already drains an area roughly the size of Britain or the U.S. state of Florida, accounting for around four per cent of global sea-level rise —an amount that has doubled since the mid-1990s. A joint UK-US research programme launched today (Monday 30 April) is one of the most detailed and extensive examinations of a massive Antarctic glacier ever undertaken.
Extreme weather events in early summer 2018 connected by a recurrent hemispheric wave-7 pattern
The summer of 2018 witnessed a number of extreme weather events such as heatwaves in North America, Western Europe and the Caspian Sea region, and rainfall extremes in South-East Europe and Japan that occurred near-simultaneously. Here we show that some of these extremes were connected by an amplified hemisphere-wide wavenumber 7 circulation pattern. We show that this pattern constitutes an important teleconnection in Northern Hemisphere summer associated with prolonged and above-normal temperatures in North America, Western Europe and the Caspian Sea region. This pattern was also observed during the European heatwaves of 2003, 2006 and 2015 among others. We show that the occurrence of this wave 7 pattern has increased over recent decades.
Kai Kornhuber, Scott Osprey, Dim Coumou, Stefan Petri, Vladimir Petoukhov, Stefan Rahmstorf and Lesley Gray
Published 26 April 2019 • © 2019 The Author(s). Published by IOP Publishing Ltd