Diagram showing an open-loop Marine Exhaust Gas Cleaning System that removes sulfur and nitrogen compounds from a ship’s engine exhaust and dumps them into the surrounding water. Graphic: Tritech Engineers

Thousands of ships fitted with “cheat devices” to divert poisonous pollution into sea – “In the North Sea and some parts of the Channel, the water quality has already been heavily degraded”

By Wil Crisp 30 September 2019 (The Independent) – Global shipping companies have spent billions rigging vessels with “cheat devices” that circumvent new environmental legislation by dumping pollution into the sea instead of the air, The Independent can reveal. More than $12bn (£9.7bn) has been spent on the devices, known as open-loop scrubbers, which extract […]

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 […]

Global average abundance of atmospheric carbon dioxide in 2018. Graphic: NOAA

Graph of the Day: NOAA Annual Greenhouse Gas Index, 1700-2018

30 May 2019 (Desdemona Despair) – Last week, the NOAA Earth System Research Laboratory posted its annual update to the NOAA Annual Greenhouse Gas Index (AGGI), which measures the climate-warming influence of long-lived trace gases, including carbon dioxide and methane. To nobody’s surprise, the AGGI continued its inexorable rise in 2018 because, for another year, […]

Reducing air pollution may worsen droughts globally – “It’s mind boggling. There is a really clear signal of the effects of human greenhouse gases on the hydroclimate.”

By James Temple1 May 2019 (Technology Review) – Climate change is clearly making some regions wetter and others drier. But it’s been difficult for scientists to detect a clear, consistent human role in increasing the frequency and severity of global droughts given natural climate variability, regional differences, and limited data. A new report in Nature adds evidence […]

Trump regulation rollbacks will result in more than 200 million tons of additional greenhouse emissions each year – “The Trump administration has taken historically unprecedented actions to roll back years of environmental progress”

WASHINGTON, D.C., 5 March 2019 (NYU School of Law) – Today, the State Energy & Environmental Impact Center at the NYU School of Law announced the release of a Special Report detailing the extensive climate change and public health damage caused by the Trump administration’s environmental deregulatory agenda. In its Special Report, titled “Climate & […]

Study finds aerosol cooling effect on climate nearly two times higher than previously thought – “The warming effect of the greenhouse gases has also been larger than we thought, enabling greenhouse-gas emissions to overcome the cooling effect of aerosols”

20 January 2019 (ISRAEL21c) – The world’s scientific community has known for a long time that global warming is caused by manmade emissions in the form of greenhouse gases, while global cooling is caused by air pollution in the form of aerosols. In a new study published in the journal Science, Hebrew University of Jerusalem […]

Air pollution from UK shipping is four times higher than previously thought

By Josh Gabbatiss 3 February 2018 (The Independent) – Toxic nitrogen dioxide emissions around major ports and sea routes in the UK are four times higher than previously suggested, according to a report for the Government. Levels of sulphur dioxide, another harmful pollutant, are three times higher. Experts say shipping pollutants, which are concentrated around […]

Ocean oxygen levels dropping as world warms – “The decline in ocean oxygen ranks among the most serious effects of human activities on the Earth’s environment”

4 January 2018 (Smithsonian Environmental Research Center) – In the past 50 years, the amount of water in the open ocean with zero oxygen has gone up more than fourfold. In coastal water bodies, including estuaries and seas, low-oxygen sites have increased more than 10-fold since 1950. Scientists expect oxygen to continue dropping even outside […]

What was it like to be India in a warming world in 2017?

By Aruna Chandrasekhar 29 December 2017 (The Wire) – In 2017, weather reports were bumped up to the front page because the impact of climate change was becoming more visible than ever. Devastating cyclones, thousands lost to floods and drought in South Asia, thousands more displaced, infernal heat-waves sweeping cities, air pollution stealing hundreds of […]

China’s sulfur dioxide emissions drop, India’s grow over last decade

By Irene Ying; Editing by Karl Hille 13 November 2017 (NASA) – A new study by researchers at NASA and the University of Maryland indicates that India may be the world’s top sulfur dioxide emitter. Sulfur dioxide is an air pollutant that causes acid rain, haze and many health-related problems. It is produced predominantly when […]

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