Wildfires are thought to be increasing in severity and frequency as a result of climate
change,,,–. Air pollution from landscape fires can negatively affect human health,–, but …

Outdoor air pollution adversely affects human health and is estimated to be responsible for
five to ten per cent of the total annual premature mortality in the contiguous United States …

Steady improvements in ambient air quality in the USA over the past several decades, in
part a result of public policy,, have led to public health benefits,,–. However, recent trends in …

Air pollution contributes to the global burden of disease, with ambient exposure to fine
particulate matter of diameters smaller than 2.5 μm (PM2. 5) being identified as the fifth …

Assessment of the global burden of disease is based on epidemiological cohort studies that
connect premature mortality to a wide range of causes 1, 2, 3, 4, 5, including the long-term …

Rising emissions from wildfires over recent decades in the Pacific Northwest are known to
counteract the reductions in human-produced aerosol pollution over North America. Since …

Remarkable perturbations in the stratospheric abundances of chlorine species and ozone
were observed over Southern Hemisphere mid-latitudes following the 2020 Australian …

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Emissions of ozone-depleting substances, including trichlorofluoromethane (CFC-11), have
decreased since the mid-1980s in response to the Montreal Protocol,. In recent years, an …

The recovery of the stratospheric ozone layer relies on the continued decline in the
atmospheric concentrations of ozone-depleting gases such as chlorofluorocarbons. The …