Remove 2017 Remove Global Remove Industrial Remove Ozone
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Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up

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Levels of two major air pollutants have been reduced significantly since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant—ground-level ozone—has increased in China, according to new research. Ozone is harmful to humans at ground-level, causing pulmonary and heart disease. —Guy Brasseur.

Ozone 291
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Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

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Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone. —Jin et al.

Ozone 150
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Emissions of potent GHG HFC-23 have grown, contradicting reports of huge reductions

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Despite reports that global emissions of the potent greenhouse gas, HFC-23, were almost eliminated in 2017, an international team of scientists, led by the University of Bristol, has found atmospheric levels growing at record values. This gas has very few industrial applications.

Emissions 199
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Latest GHG Inventory shows California remains below 2020 emissions target; much steeper rate of GHG reductions required

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The California Air Resources Board released GHG emissions data for 2018 showing that emissions remain below 1990 levels but are effectively flat compared to 2017, while the economy grew by 4.3%. million metric tons in 2017. million metric tons between 2017 and 2018, the first such decline since 2013. tons per person to 10.7

2020 221
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HEI: 95%+ of world’s population live in areas of unhealthy air

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Seven billion people, more than 95% of the world’s population, lived in areas exceeding the WHO Guideline for healthy air in 2016, according to a new global study. State of Global Air 2018. Population-weighted seasonal average ozone concentrations in 2016. State of Global Air 2018. State of Global Air 2018.

Pollution 218
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ICCT study finds that transitioning to low-GWP MAC refrigerants in China could avoid up to US$150B in costs

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The competitiveness impacts of transition are expected to be minor and, because transition is already underway in the major US and EU markets, this transition cannot be avoided regardless of China’s decision-making if Chinese manufacturers wish to compete globally. —“HFC-134a phase-out in the Chinese light-duty motor vehicle sector”.

China 150
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Study finds modifying urban form may be a strategy to reduce air pollution

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They used satellite-based measurements of urban form and nitrogen dioxideO 2 (n) to explore relationships between urban form and air pollution for a global data set of 1,274 cities. Cities serve as economic and social centers, concentrating people, activities, ideas, and industries. Marshall (2017) “Does Urban Form Affect Urban NO2?

Pollution 231