Statewide rankings for average temperature and precipitation for September 2019 compared to each September since records began in 1895. Graphic: NOAA / NCEI

September 2019 hottest on record globally, second hottest in U.S. history – All-time record for 12-month rainfall in U.S.

5 October 2019 (Copernicus Climate Change Service) – In Europe, temperatures were above average over most of the continent, especially in the south and south-east. Below-average temperatures occurred over much of Norway and Sweden, and over the far east of the continent. Globally September 2019 was 0.57°C warmer than the average September from 1981-2010, making […]

Aerial view of houses inundated by monsoon floodwaters in Prayagraj, in the northern Indian state of Uttar Pradesh, on 28 September 2019. Photo: Rajesh Kumar Singh

Photo gallery: Flooding in India during heaviest monsoon rainfall in 25 years

By Niha Masih 1 October 2019 NEW DELHI – People using rafts on roads, waterlogged hospitals and shops, food packets being airdropped — this is what life has been like in the northern Indian states of Bihar and Uttar Pradesh after heavy rains led to large-scale flooding. India received the heaviest monsoon rainfall in 25 years, […]

Aerial view of damaged mangroves from a 2019 monitoring trip in the Gulf of Carpentaria. A cascade of impacts including rising sea levels, heatwaves and back-to-back tropical cyclones has created 400km of dead and badly damaged mangroves in the Gulf of Carpentaria. A cascade of impacts including rising sea levels, heatwaves and back-to-back tropical cyclones has created 400km of dead and badly damaged mangroves in the Gulf of Carpentaria. Photo: Norman Duke

Shocked scientists find 400 km of dead and damaged mangroves in Australia’s Gulf of Carpentaria – “We are getting these compounding effects that we just didn’t expect”

By Graham Readfearn 3 October 2019 (The Guardian) – A cascade of impacts including rising sea levels, heatwaves and back-to-back tropical cyclones has created 400 kilometers [249 miles] of dead and badly damaged mangroves in the Gulf of Carpentaria, a scientific monitoring trip has discovered. Prof Norman Duke, of James Cook University, spent 10 days […]

Map showing 2015–2019 five-year average temperature anomalies relative to the 1981-2010 average. Data: NASA GISTEMP v4. through June 2019. Graphic: WMO

Landmark “United in Science” report brings together world’s leading climate science organizations

NEW YORK, 22 September 2019 (WMO) – The world’s leading climate science organizations have joined forces to produce a landmark new report  [pdf] for the United Nations Climate Action Summit, underlining the glaring – and growing – gap between agreed targets to tackle global warming and the actual reality. The report, United in Science, includes details on the […]

Satellite view of the Valdecañas Reservoir in Spain, on 24 July 2013 and 25 July 2019. The record heatwave and extreme drought of 2019 revealed the lost “Spanish Stonehenge”, the Dolmen of Guadalperal. Photo: Lauren Dauphin / NASA Earth Observatory

Record heatwave and extreme drought reveal lost “Spanish Stonehenge”

By Kasha Patel 19 September 2019 (NASA) – In 1963, the Spanish government under Francisco Franco built the Valdecañas Reservoir in order to bring water and electricity to underdeveloped parts of western Spain. However, the creation of the reservoir flooded some inhabited areas as well as large stone (megalithic) monuments. After fifty years underwater, one […]

United Nations High Commissioner for Human Rights, Michelle Bachelet, listens to the meeting introduction before delivering opening remarks while hosting a debate on key human rights issues in the country at ICS—Instituto de Ciências Sociais da Universidade de Lisboa on 29 April 2019 in Lisbon, Portugal. Photo: Horacio Villalobos / Corbis / Getty Images

We are “burning up our future”, UN’s Bachelet tells Human Rights Council – “The world has never seen a threat to human rights of this scope”

9 September 2019 (UN News) – The Human Rights Council opened in Geneva on Monday with a warning from the UN’s top rights official that, with forest fires raging in the Amazon, “we are burning up our future, literally”. In a direct appeal to the forum’s 47 Member States to unite to tackle climate change, […]

August 2019 Blended Land and Sea Surface Temperature Anomalies in degrees Celsius. Graphic: NOAA

Summer 2019 in the Northern Hemisphere tied for warmest summer on record – Five hottest NH summers have occurred in the past five years

By Andrew Freedman 16 September 2019 (The Washington Post) – The Northern Hemisphere just had its hottest summer on record since 1880, according to National Oceanic and Atmospheric Administration data released Monday. NOAA found the average global surface temperature taken by thousands of thermometers, buoys and other sensors on land and sea tied with that of 2016 […]

Hawaii was surrounded by waters with warmer-than-average sea surface temperatures on 9 September 2019. Departures from the seasonal norm are shown in degrees Celsius. On this date, Lihue, Kauai observed its 17th consecutive day of a daily record high temperature being set or tied. This is likely the longest such stretch for any official weather station with a long period of record (more than 50 years) at any site in the U.S. climate database. Graphic: Tropical Tidbits

Hawaii’s warmest summer on record and Alaska’s second warmest in 2019

By Christopher C. Burt 10 September 2019 (Weather Underground) – Although 2800 miles of open ocean separate them, both Anchorage, Alaska and Honolulu, Hawaii experienced their warmest climatological summers (June-August) on record this year. It appears that this was Alaska’s second warmest summer (following that of 2004) but it is likely that it was Hawaii’s […]

Top: Opal Reef in the northern Great Barrier Reef before, during and after the 2016 mass bleaching event. (left to right: September 2015, April 2016, November 2016). Bottom: Double Cone Island in the Whitsundays area of the Great Barrier Reef in 2014, post-cyclone Debbie in 2017 and mid-2018 (left to right). Photo: Taylor Simpkins / Australian Institute of Marine Science

Great Barrier Reef outlook downgraded to “very poor” as threats mount – “We’ve had ten years of warnings, ten years of rising greenhouse emissions, and ten years watching the Reef heading for a catastrophe”

By Peter Hannam 30 August 2019 (The Sydney Morning Herald) – The Great Barrier Reef is at “a critical point” with the marine park’s outlook downgraded on Friday from “poor” to “very poor” due to coral bleaching and deforestation. Climate change resulting in rising sea temperatures was blamed in the federal government’s five-year Great Barrier Reef […]

Projected change in average surface temperature in Phoenix, Arizona between 2000 and 2050. Graphic: Vox

Can we survive extreme heat? Humans have never lived on a planet this hot, and we’re totally unprepared for what’s to come

By Jeff Goodell 27 August 2019 (Rolling Stone) – On a scorching day in downtown Phoenix, when the temperature soars to 115°F or higher, heat becomes a lethal force. Sunshine assaults you, forcing you to seek cover. The air feels solid, a hazy, ozone-soaked curtain of heat. You feel it radiating up from the parking […]

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