Map showing surface air temperature anomaly for May 2020 relative to the May average for the period 1981-2010. May 2020 was the hottest May on record. Data: ERA5. Graphic: Copernicus Climate Change Service / ECMWF

May 2020 was hottest May on record – “The really large anomalies started during January, and since then this signal has been quite persistent”

By Kelly Macnamara and Marlowe Hood 5 June 2020 PARIS (AFP) – Temperatures soared 10 degrees Celsius above average last month in Siberia, home to much of Earth’s permafrost, as the world experienced its warmest May on record, the European Union’s climate monitoring network said Friday. Large swathes of Siberia have been unusually warm for […]

Map showing observed global extreme humid heat. Color symbols represent the 99.9th percentile of observed daily maximum TW for 1979–2017 for HadISD stations with at least 50 percent data availability over this period. Marker size is inversely proportional to station density. Graphic: Raymond, et al., 2020 / Science Advances

Dangerous humid heat extremes occurring decades earlier than expected – “We are already locked in to large increases in the frequency and intensity of extreme humid heat events, and the risk is much larger than most people appreciate”

8 May 2020 (NOAA) – Oppressively hot summer days often evoke the expression, “it’s not the heat, it’s the humidity.” That sticky, tropical-like air combined with high temperatures is more than unpleasant — it makes extreme heat a greater health risk. Climate models project that combinations of heat and humidity could reach deadly thresholds for […]

Mother and son wearing masks stand under a sky tinted red as surrounding bushfires close in, Mallacoota, Australia, 4 January 2020. Photo: Reuters

The age of stability is over, and coronavirus is just the beginning – “Our modern interconnected global economy is much more vulnerable than we thought”

By Wolfgang Knorr 16 April 2020 (The Conversation) – Humanity has only recently become accustomed to a stable climate. For most of its history, long ice ages punctuated with hot spells alternated with short warm periods. Transitions from cold to warm climates were especially chaotic. Then, about 10,000 years ago, the Earth suddenly entered into a […]

Map showing Arctic temperature anomalies for December 2019, January 2020, and February 2020. Mainland Alaska and northwest Canada, along with parts of Greenland and Svalbard were the primary high latitude areas that were consistently colder than average during winter 2019/2020. Northern Eurasia was outlandishly mild. Graphic: Karsten Haustein / Twitter

Winter 2019/2020 warmest on record in Moscow, first winter to average above freezing – Temperature milestones set across Europe and North America – German ice wine harvest fails for first time on record

By Andrew Freedman 2 March 2020 (The Washington Post) – The meteorological winter of 2019-2020 shattered temperature records in Russia and France as well as other parts of Europe and the United States. In Moscow, this was the warmest winter in nearly 200 years of record-keeping, and the first winter there to have an average […]

Art by Breathe a Blue Ocean. Filmed and edited by Adam Stan Photography. Video: Adam Stan

Sand art for Australia wildlife: “Banksy of Barwon Heads” explains reason behind koala etched in sand on Victoria beach

By Sarah Jane Bell 21 January 2020 (ABC Ballarat) – An image of a koala clinging to a tree branch that has been etched in the sands of a Victorian beach has garnered international attention. A photograph of the 120-metre-long artwork near Barwon Heads, south of Geelong, shows a sunset obscured by bushfire smoke and has touched […]

The Clear Range Fire burns in Bredbo North, New South Wales, Australia shortly before overrunning the property of Lawrence and Clair Cowie on 1 February 2020. Photo: Brook Mitchell / Getty Images

Fires set stage for irreversible forest losses in Australia – “Anybody would have said these forests don’t burn, that there’s not enough material, and they are wet. Well they did.”

By Matthew Brown and Christina Larson 18 January 2020 (AP) – Australia’s forests are burning at a rate unmatched in modern times and scientists say the landscape is being permanently altered as a warming climate brings profound changes to the island continent. Heat waves and drought have fueled bigger and more frequent fires in parts of […]

Atmospheric CO2 concentrations, 2014-2019 and projected through 2020. Forecast (red) CO2 concentrations at the Mauna Loa observatory, with previous forecasts (blue) are compared to observations (black). The forecast uncertainty range (orange) based on the SST forecast is ± 2 standard deviations. Graphic: Met Office

Australia bushfires contribute to big rise in global CO₂ levels in 2020

By Grahame Madge 24 January 2020 (Met Office) – A forecast of the atmospheric concentration of carbon-dioxide shows that 2020 will witness one of the largest annual rises in concentration since measurements began at Mauna Loa, in Hawaii, 1958. During the year the atmospheric concentration of CO₂ is expected to peak above 417 parts per […]

Winter rainfall in eastern Australia, 1900–2019. The unprecedented lack of winter rains in 2017, 2018, and 2019, and Australia’s hottest summer on record, contributed to the extreme drought that affected 100 percent of New South Wales and 67.4 percent of Queensland in 2019 and 2020. Graphic: Bureau of Meteorology

Some say we’ve seen bushfires worse than this before. But they’re ignoring a few key facts.

By Joelle Gergis and Geoff Cary 13 January 2020 (The Conversation) – Every time a weather extreme occurs, some people quickly jump in to say we’ve been through it all before: that worse events have happened in the past, or it’s just part of natural climate variability. The recent bushfire crisis is a case in point. […]

Aerial views showing Australia landscape before and after the megafires of 2019 and 2020. Photo: Nearmap

Australia bushfires from the air: before and after images show scale of devastation

By Naaman Zhou 16 January 2020 (The Guardian) – More than 10.7m hectares of land have burnt so far in Australia’s bushfires – larger than the total area of South Korea, or Portugal, and 1.3 times the size of Scotland. The ongoing and unprecedented bushfire crisis has spread across six states and multiple months. In New South Wales alone, the […]

Dead salmon on the shores of the Ugashik, Alaska in July 2019. More than 100,000 fish in Bristol Bay were killed by heat stress in 2019. Photo: Birch Block

Record summer heat in Alaska wiped out at least 100,000 Kuskokwim salmon in Bristol Bay – “I’ve never seen a salmon that is still ocean-bright acting in such a way”

By Isabelle Ross 15 January 2020 DILLINGHAM, Alaska (Alaska Public Media) – The sun beat down relentlessly on Bristol Bay this summer, heating up the rivers and lakes where millions of sockeye salmon returned to spawn. July was the region’s hottest month on record, and in some rivers, that heat was lethal. Tim Sands, an […]

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