Canada – Desdemona Despair

Map showing worldwide natural disasters in 2023. Worldwide, natural disasters in 2023 resulted in losses of around US$250 billion (previous year US$250 billion). Loss statistics were characterised by the large number of severe regional storms. Such high thunderstorm losses have never been recorded before in the USA or in Europe: assets worth around US$66 billion were destroyed in North America, of which US$50 billion was insured, while in Europe the figure was US$10 billion (€9.1 billion), of which US$8 billion (€7.3 billion) was insured. A large body of scientific research indicates that climate change favours severe weather with heavy hailstorms. Similarly, loss statistics from thunderstorms in North America and other regions are trending upward. Graphic: Munich Re

May 1, 2024

Munich Re: Record thunderstorm losses in 2023 – “The warming of the earth that has been accelerating for some years is intensifying the extreme weather in many regions, leading to increasing loss potentials”

9 January 2024 (Munich Re) – Worldwide, natural disasters in 2023 resulted in losses of around US$ 250bn (previous year US$ 250bn), with insured losses of US$ 95bn (previous year US$ 125bn). Overall losses tally with the five-year average, while insured losses were slightly below the average figure of US$ 105bn. Unlike in previous years, […]

Effects of experimental open-top chamber (OTC) warming on ecosystem respiration (ER). Experimental warming increased ER across the tundra biome but the magnitude of the response varied across time and space. Effect of OTC warming on ER Hedges’ SMD calculated as (mean ER of the warmed plots − mean ER of the control plots)/pooled standard deviation across the 136 growing season datasets (that is, unique experiment × ER measurement year combinations). On the top of the graph, a blue diamond shows the mean estimate (est. = 0.57 and 95% CI [0.44–0.70], error bars) of the ER response across the 136 datasets, as well as the Q value testing for heterogeneity and P value from the meta-analysis. Black dots represent ER Hedges’ SMDs of individual datasets and 95% CIs (black error bars) in alphabetical and chronological order. Individual datasets are represented by the experiment ID in black (left) and ER measurement year (right) in a colour scale ranging from dark blue, light blue, orange to red which represents increasingly longer warming duration at the time of ER measurements. Experiments with more than 1 year of ER data are grouped. See Supplementary Tables 1, 2 and 4 for details on the datasets and SMD and CI values. The black dashed vertical line (SMD = 0) represents no change in ER with warming whereas the areas to the right and left of it represent increased (SMD > 0) versus decreased (SMD

April 28, 2024

Understanding climate warming impacts on carbon release from the tundra – “We anticipate an increase in respiration across the whole Arctic and alpine tundra”

By Sara-Lena Brännström 17 April 2024 (Umeå University) – A team of over 70 scientists from different countries used so called open-top chambers (OTCs) to experimentally simulate the effects of warming on 28 tundra sites around the world. OTCs basically serve as mini-greenhouses, blocking wind and trapping heat to create local warming. The warming experiments […]

Spatial distribution of the total number of exposed days in 995 California ZIP Code Tabulation Areas (ZCTA) from 2006 to 2019 under the main analysis definition for climate hazards (85th percentile for extreme heat and 15 μg/m3 for wildfire PM2.5). (A) Compound exposure, (B) extreme heat alone, and (C) wildfire smoke alone. Gray color represents excluded ZCTA that has a population of ≤1000 or lacks any exposed day (extreme heat alone, wildfire smoke alone, or both). Graphic: Chen, et al., 2024 / Science Advances

April 28, 2024

Extreme heat, wildfire smoke harm low-income and nonwhite communities the most – “It’s really important to highlight this social injustice aspect of climate change”

By Dorany Pineda 2 February 2024 LOS ANGELES (AP) – Extreme heat and wildfire smoke are independently harmful to the human body, but together their impact on cardiovascular and respiratory systems is more dangerous and affects some communities more than others. A study published Friday in the journal Science Advances said climate change is increasing the frequency […]

Annual global mean surface temperature anomalies relative to 1850–1900. Global mean near-surface temperature in 2023 was 1.45 ± 0.12 °C above the 1850–1900 average. The analysis is based on a synthesis of six global temperature datasets. 2023 was the warmest year in the 174-year instrumental record in each of the six datasets. The past nine years – from 2015 to 2023 – were the nine warmest years on record. The two previous warmest years were 2016, with an anomaly of 1.29 ± 0.12 °C, and 2020, with an anomaly of 1.27 ± 0.13 °C. Globally, every month from June to December was record warm for the respective month. September 2023 was particularly noteworthy, surpassing the previous global record for September by a wide margin (0.46 °C–0.54 °C) in all datasets. The second-highest margin by which a September record was broken in the past 60 years (the period covered by all datasets) was substantially smaller, at 0.03 °C–0.17 °C in 1983. July is typically the warmest month of the year globally, and thus July 2023 became the warmest month on record. The long-term increase in global temperature is due to increased concentrations of greenhouse gases in the atmosphere. The shift from La Niña, which lasted from mid-2020 to early 2023, to fully developed El Niño conditions by September 2023 likely explains some of the rise in temperature from 2022 to 2023. However, some areas of unusual warming, such as the North-East Atlantic do not correspond to typical patterns of warming or cooling associated with El Niño. Other factors, which are still being investigated, may also have contributed to the exceptional warming from 2022 to 2023, which is unlikely to be due to internal variability alone. Graphic: WMO

April 28, 2024

WMO: Climate change indicators reached record levels in 2023 – “Sirens are blaring across all major indicators. Some records aren’t just chart-topping, they’re chart-busting. And changes are speeding-up.”

19 March 2024 (WMO) – A new report from the World Meteorological Organization (WMO) shows that records were once again broken, and in some cases smashed, for greenhouse gas levels, surface temperatures, ocean heat and acidification, sea level rise, Antarctic sea ice cover and glacier retreat. Heatwaves, floods, droughts, wildfires, and rapidly intensifying tropical cyclones […]

Percentage of documented and undocumented mines, by country. More than half of the global mining areas (56 percent) visible from satellite images have no production information available listed in a global compilation from the S&P Capital IQ Pro database. The total worldwide mining land use for mining in 120,000 km2, with 67,000 km2 undocumented. Graphic: Nature

January 3, 2024

Impacts for half of the world’s mining areas are undocumented – 56 percent of global mining areas visible from satellite images have no production information available

By Victor Maus and Tim T. Werner 3 January 2024 (Nature) – Mining is a crucial industry — from iron and copper to gravel and sand, we depend on it for the basic building blocks of the modern world. It is a fast changing sector, as the clean energy transition and digitalization boost demand for […]

Aerial view of the Donnie Creek wildfire in northeastern British Columbia in May 2023. The massive blaze ripped across more than 1.44 million acres of land throughout the late spring and summer, making it the largest wildfire on record for the Canadian province. Photo: BC Wildfire Service

December 30, 2023

Ten “you must be kidding” weather and climate facts of 2023

By Bob Henson and Jeff Masters 26 December 2023 (Yale Climate Connections) – The drumbeat of record weather and climate phenomena — hottest, wettest, fieriest, fiercest, and so on — can sometimes fade into the background, like the repetitive backdrop to a mournful dirge. Then there are those sharp moments, like a cymbal crash, when […]

Global greenhouse gas (GHG) emissions in 2021 and trend since 2000, including inventory-based Land use, land-use change and forestry (LULUCF) CO2 in GtCO2e (top) and Per capita GHG emissions in 2021 and trend since 2000, including inventory-based LULUCF CO2 in tCO2e/capita (bottom). Graphic: UNEP

December 29, 2023

Petrostates planning huge expansion of fossil fuels, says UN report – “These plans throw humanity’s future into question. Governments must stop saying one thing and doing another.”

By Damian Carrington 8 November 2023 (The Guardian) – The world’s fossil fuel producers are planning expansions that would blow the planet’s carbon budget twice over, a UN report has found. Experts called the plans “insanity” which “throw humanity’s future into question”. The energy plans of the petrostates contradicted their climate policies and pledges, the report said. […]

U.S. federal government outlays for net interest (12-month rolling sum), 1985-2023. Data are current through August 2023. Data: LSEG Datastream. Graphic: Kripa Jayaram / Reuters

October 29, 2023

As global debt worries mount, is another crisis brewing? “You can take many, many countries today, and you will see that we are not far away from a public finances crisis”

By Yoruk Bahceli, Dhara Ranasinghe, and Maria Martinez 16 October 2023 LONDON (Reuters) – Record debts, high interest rates, the costs of climate change, health, and pension spending as populations age and fractious politics are stoking fears of a financial market crisis in big, developed economies. A surge in government borrowing costs has put high debt in […]

The Bald Mountain Wildfire burns in the Grande Prairie Forest Area in Alberta on 12 May 2023. Government of Alberta Fire Service / Canadian Press / AP

September 10, 2023

Forests are no longer our climate friends – “As extreme as this year’s wildfire emissions have been, they are just the latest escalation in a multi-decade flood of CO₂ pouring out of Canada’s ‘managed’ forests and forestry”

By David Wallace-Wells 6 September 2023 (The New York Times) – Canadian wildfires have this year burned a land area larger than 104 of the world’s 195 countries. The carbon dioxide released by them so far is estimated to be nearly 1.5 billion tons — more than twice as much as Canada releases through transportation, […]

CAMS Daily total cumulative carbon emissions from Canada wildfires in 2023, compared with emissions since 2003. Data for 2023 are current through 28 August 2023. Growth in fire emissions have surpassed 2014 to set a new record for the last two decades. Graphic: Mark Parrington / Copernicus Atmosphere Monitoring Service

September 4, 2023

Wildfires in Canada’s Northwest Territories have released 97 megatons of carbon, 277 times what its people emit – Emissions from wildfires across Canada in 2023 vastly exceed the 2014 record

By Liny Lamberink 28 August 2023 (CBC News) – Wildfires in the N.W.T have emitted 97 megatonnes of carbon into the air so far this year — 277 times more than what was caused by humans in the territory back in 2021. Mark Parrington, a senior scientist working at the European Union’s Copernicus Atmosphere Monitoring Service (CAMS), […]