Attribution science for tornadoes and a range of other physical events

The figure below shows how well the effects of climate change on different extreme events are understood. It ranks each type of extreme event based on how well the effects of climate change are understood (the x-axis) and on the extent to which any individual event can be attributed to climate change (the y-axis). Understanding and attribution of climate change …

Study finds substantial warming in atmospheric rivers. Also beliefs about climate change in the aftermath of extreme flooding

Justin Gillis, the former NYT environment reporter, has written an opinion piece for the paper noting that the six US states where policies have been adopted requiring the elimination of CO2 emissions from power grids happen to be ones where the Democrats have taken full control of state government: “I think the trend holds important lessons for the Democratic Party. …

May 2019 science and impact updates

Substantial increase in minimum lake surface temperatures under climate change  (Climate Change) The average surface temperature of European lakes has risen by 0.35C per decade since the early 1970s, a new study finds. The researchers analysed observational data for 1973-2014 from eight European lakes, finding rising annual and summer average temperatures – as well as increases in annual minimum lake surface …

Avoided deforestation has a high value but is hard to prevent without strong regulation and enforcement

Potential for low-cost carbon dioxide removal through tropical reforestation (Nature Climate Change) Removing CO2 from the atmosphere by planting tropical forests could be a “low cost” way of tackling climate change, a study says. The research estimates that CO2 removal from tropical reforestation could be increased by 5% at a cost of $20 per tonne of CO2. However, “avoided deforestation” – leaving forests …

Trends in plankton communities

DeSmogBlog, May 16, 2019   Share By Olivia Rosane, EcoWatch. Yet another study has shown that glaciers in Antarctica are melting at accelerating rates. Almost 25 percent of the West Antarctic ice shelf is now thinning, and the Pine Island and Thwaites glaciers are losing ice at five times the rate they were in the early 1990s, CNN reported. “In parts of Antarctica, the ice sheet has thinned by …

We cooperate as kindred spirits on a mission of public service. We create partnerships to share resources. We challenge media owners and investors to act in the public interest. We keep the whole picture in our heads.

We cooperate as kindred spirits on a mission of public service. We create partnerships to share resources. We challenge media owners and investors to act in the public interest. We keep the whole picture in our heads. Excerpt from Bill Moyers’ talk on covering global heating…  May 2019 While I did not come with a silver bullet—there’s no such thing—I …

CO2 hits over 415 ppm

The concentration of carbon dioxide, the main, long-lived greenhouse gas causing global climate change, in Earth’s atmosphere has reached new heights, according to scientists at Scripps Institution of Oceanography. Why it matters: The new reading of 415.26 parts per million (ppm) on May 11 was the first daily baseline at Hawaii’s Mauna Loa Observatory to eclipse 415 ppm. That observatory has …

Part of world’s largest ice shelf melting 10x faster than the rest. Gorillas showing elevated stress levels in months with higher than average temperatures and rainfall

Part of the world’s largest ice shelf is melting 10 times faster than the rest, reports BBC News. A new study of Antarctica’s Ross Ice Shelf, published in Nature Geoscience, reveals that one area is melting due to warm ocean water getting into a cavity under the shelf. The rapidly melting zone is at the front of the Ross Ice …

Heating and risk of heatwaves are much worse

‘It is horrid’: India roasts under heat wave with temperatures above 120 degrees, 7 June 2019 The Washington Post | Joanna Slater When the temperature topped 120 degrees (49 Celsius), residents of the northern Indian city of Churu stopped going outside and authorities started hosing down the baking streets with water. Churu – home to more than 100,000 people – has …