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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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Study finds that unregulated VSLS efficient at influencing climate through depletion of stratospheric ozone

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Although halogens released from long-lived anthropogenic substances, such as chlorofluorocarbons (CFCs), are the principal cause of the recent depletion of stratospheric ozone, recent observations show that very short-lived substances (VSLS), with lifetimes generally under six months, are also an important source of stratospheric halogens.

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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Study: 87% of world’s population in 2013 lived in areas exceeding WHO PM2.5 guidelines

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Between 1990 and 2013, global population-weighted PM 2.5 Additionally, the study found that the population-weighted mean concentrations of ozone increased globally by 8.9% The Global Burden of Disease (GBD) 2013 provided important estimates of the global health impacts attributable to ambient air pollution.

2013 150
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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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WMO reports GHG concentrations at highest in 800K years

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Globally averaged concentrations of CO 2 reached 403.3 ppm in 2015 because of a combination of human activities and a strong El Niño event. Concentrations of CO 2 are now 145% of pre-industrial (before 1750) levels, according to the Greenhouse Gas Bulletin. Globally averaged concentrations for CO 2 reached 403.3

2016 186
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Study: air pollution causes 800,000 extra deaths a year in Europe and 8.8 million worldwide

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Using a new method of modeling the effects of various sources of outdoor air pollution on death rates, the researchers found that it caused an estimated 790,000 extra deaths in the whole of Europe in 2015 and 659,000 deaths in the 28 Member States of the European Union (EU-28). million deaths in 2015. They focused particularly on PM 2.5

Pollution 320