Equilibrium climate sensitivity estimates from IPCC AR5, CMIP5, and early CMIP6 models. Graphic: Stephen Belcher / Carbon Brief

Earth warming more quickly than thought, new climate models show – “We have better models now. They have better resolution, and they represent current climate trends more accurately.”

By Marlowe Hood 17 September 2019 (AFP) – Greenhouse gases thrust into the atmosphere mainly by burning fossil fuels are warming Earth’s surface more quickly than previously understood, according to new climate models set to replace those used in current UN projections, scientists said Tuesday. By 2100, average temperatures could rise 7.0 degrees Celsius above […]

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 […]

Map showing 2014-2018 global temperature change, compared with 1880-1899 temperatures. Data: Berkeley Earth. Graphic: The Washington Post

Dangerous new hot zones are spreading around the world

By Chris Mooney and John Muyskens 11 September 2019 LA CORONILLA, Uruguay (The Washington Post) – The day the yellow clams turned black is seared in Ramón Agüero’s memory. It was the summer of 1994. A few days earlier, he had collected a generous haul, 20 buckets of the thin-shelled, cold-water clams, which burrow a […]

Adult obesity in the U.S. by state in 2018, with top ten states highlighted. Graphic: Trust for Americas Health

U.S. obesity rates hit historic highs in 2018 – Nine states reach adult obesity rates of 35 percent or more – “These latest data shout that our national obesity crisis is getting worse”

WASHINGTON, DC, 12 September 2019 (Trust for America’s Health) – Nine U.S. states had adult obesity rates above 35 percent in 2018, up from seven states at that level in 2017, an historic level of obesity in the U.S., according to the 16th annual State of Obesity: Better Policies for a Healthier America report [pdf] released today by the […]

U.S. federal budget deficits and discretionary spending, 2009-2019. Data: Committee for a Responsible Federal Budget / U.S. OMB / CBO. Graphic: CNN

U.S. deficit tops $1 trillion in 11 months, highest in 7 years – “Absent more responsible budgets, the deficit and interest costs will continue to grow rapidly, diminishing America’s future”

By Niv Elis 12 September 2019 (The Hill) – The U.S. government deficit surpassed $1 trillion in the first 11 months of the current fiscal year, over $100 billion more than the same period last year, according to official Treasury figures released Thursday. Last week, data from the Congressional Budget Office (CBO) found that the […]

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 […]

The Sentinel-2 satellite captured a headfire in heath fuels burning as a part of the Shark Creek bush fire near Yamba, 8 September 2019. Photo: Nicholas McCarthy

Australia rainforest burns as bushfires arrive early – Queensland faces worst fire threat in recorded history – “This isn’t the new normal. We’re going to see much worse. The pace of the change is going to accelerate.”

By Damien Cave 9 September 2019 SYDNEY, Australia (The New York Times) – The conservationists who built the secluded Binna Burra Lodge in Australia’s lush mountains more than 80 years ago hoped to protect and share the natural beauty of the surrounding rainforest. But over the weekend, a bushfire destroyed the beloved getaway, one of […]

Fractional area of agriculture and secondary vegetation in the Brazilian Amazon under the two analyzed land-use change scenarios (“Sustainability” and “Fragmentation”) by the mid (2041-2070) and the end (2071-2100) of the 21st century. Graphic: Fonseca, et al., 2019 / Global Change Biology

Amazon deforestation and development heighten Amazon fire risk – “Most of the current fires are related to the deforestation process”

By Sarah Sax 6 September 2019 (Mongabay) – As of 24 August 2019, there were 41,858 fires reported this year in the Brazilian Amazon — the highest number since 2010, when 58,476 were recorded by that date. Likewise, the U.S. space agency NASA has shown this to be the most active fire year for the region since 2010. However, […]

U.S. debt as a percentage of Gross Domestic Product (GDP), 1940-2019 and projected to 2029. Federal debt held by the public is projected to rise steadily over the coming decade, from 79 percent of GDP in 2019 to 95 percent of GDP in 2029. It would continue to grow after 2029. Relative to the size of the economy, federal debt in 2019 is projected to be nearly twice its average over the past 50 years. At the end of 2029, debt is projected to reach a higher level than it has at any point since just after World War II. Graphic: CBO

Real U.S. debt levels could be a shocking 2,000 percent of GDP – “We are quickly approaching a situation where we have dug ourselves a debt hole which is going to have profoundly negative effects on the economy for probably decades”

By Jeff Cox 9 September 2019 (CNBC) – Total potential debt for the U.S. by one all-encompassing measure is running close to 2,000% of GDP, according to an analysis that suggests danger but also cautions against reading too much into the level. AB Bernstein came up with the calculation — 1,832 percent, to be exact […]

Change in surface temperatures from present, 20000 ybp to 2071-2095. Graphic: Clark, et al., 2016 / Nature Climate Change

There is no Plan B for dealing with climate change – “With regard to the climate crisis, yes, it’s time to panic”

By Raymond Pierrehumbert 16 August 2019 (Bulletin of the Atomic Scientists) – Let’s get this on the table right away, without mincing words. With regard to the climate crisis, yes, it’s time to panic. We are in deep trouble. To understand why, it is necessary to understand something about carbon budgets. Some of the carbon […]

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