Remove 2000 Remove Global Remove International Remove Ozone
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TOAR shows present-day global ozone distribution and trends relevant to health; public database

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Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb. Source: University of Leicester. Click to enlarge.

Ozone 255
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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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UN report projects that increasing use of HFCs likely to have a significant climate impact by 2050; equivalent to current total annual emissions from transport

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The decrease in CO 2 equivalent emissions of ODSs (ozone-depleting substances: CFCs, halons, HCFCs, and others) may be offset by the projected increase in their non-ozone depleting substitutes (HFCs) (lines designated as HFC scenarios). W m -2 relative to 2000. Climate and the Ozone Layer. Source: UNEP. Click to enlarge.

Climate 287
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Study projects net cooling of climate from ship emissions through 2050

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Shipping-induced global temperature change in 2050 using different parameterizations of Indirect Aerosol Effect (IAE). A recent study by an international team calculated that shipping causes a net cooling of climate across all parametrizations of the indirect aerosol effect (IAE) and scenarios throughout the period 1900?

Climate 240
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Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

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HFCs are powerful greenhouse gases originally developed as substitutes for ozone-depleting chemicals. By 2050, HFC emissions could equal up to 19% of global CO 2 emissions under business-as-usual scenarios. million people a year, global action to cut soot emissions would reap major benefits for both public health and climate.

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NASA GISS Study Finds That Methane Has an Elevated Warming Effect Due to Interactions With Aerosols

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The 100-year global warming potentials (GWPs) for methane, CO, and NO x (per Tg N) as given in the AR4 and in this study when including no aerosol response; the direct radiative effect of aerosol responses; and the direct+indirect radiative effects of aerosol responses. Source: Shindell at al. Click to enlarge. Drew Shindell.

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UN Review of Recent Climate Research Concludes That Impacts Of Climate Change Coming Faster Than Anticipated

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Global emissions were growing by 1.1% per year from 2000-2007. The developing and least-developed economies, 80% of the world’s population, accounted for 73% of the global growth of emissions in 2004. Experts increasingly agree that active protection of tropical forests is a cost-effective means of cutting global emissions.