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Showing 1–10 of 10 results
Advanced filters: Author: Ryan Hossaini Clear advanced filters

  • An Earth system model estimates that natural halogens, of marine biotic and abiotic origin, remove about 13% of present-day global tropospheric O3. Projections suggest this ratio is stable through 2100, with high spatial heterogeneity, despite increasing natural halogens.

    • Fernando Iglesias-Suarez
    • Alba Badia
    • Alfonso Saiz-Lopez
    Research
    Nature Climate Change
    Volume: 10, P: 147-154

  • Short-lived halogens have a substantial indirect cooling effect on climate and this cooling effect has increased since pre-industrial times owing to anthropogenic amplification of natural halogen emissions.

    • Alfonso Saiz-Lopez
    • Rafael P. Fernandez
    • Jean-François Lamarque
    ResearchOpen Access
    Nature
    Volume: 618, P: 967-973

  • Chlorine-containing species deplete stratospheric ozone and while chlorofluorocarbons have been drastically reduced, dichloromethane concentrations have recently increased rapidly. Hossainiet al. show that continued growth at this rate could result in important delays to Antarctic ozone recovery.

    • Ryan Hossaini
    • Martyn P. Chipperfield
    • John A. Pyle
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-9

  • In contrast to the overall recovery of stratospheric ozone, ozone depletion in the tropical lower stratosphere has been ongoing over recent years. Here the authors show that currently unregulated halogenated ozone-depleting very short-lived substances play a key role in this ongoing depletion.

    • Julián Villamayor
    • Fernando Iglesias-Suarez
    • Alfonso Saiz-Lopez
    ResearchOpen Access
    Nature Climate Change
    Volume: 13, P: 554-560

  • Methane is a powerful greenhouse gas and previous studies focus on its sources with less attention on the loss. Here the authors show that reactive halogen species, not considered in climate projections, significantly reduces the methane loss, increasing its lifetime, burden, and radiative forcing.

    • Qinyi Li
    • Rafael P. Fernandez
    • Alfonso Saiz-Lopez
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-11

  • New, non-compliant emissions of ozone-depleting substances and very short-lived substances challenge the continued success of the Montreal Protocol, and, thereby, the timescale for the recovery of the ozone layer. This Review discusses recent trends in anthropogenic and natural ozone-depleting substance and very short-lived substance emissions, and examines their potential impact on atmospheric ozone concentrations.

    • Martyn P. Chipperfield
    • Ryan Hossaini
    • Susann Tegtmeier
    Reviews
    Nature Reviews Earth & Environment
    Volume: 1, P: 251-263

  • An overview of the nature and timescales of stratospheric ozone recovery and the extent to which it can currently be detected.

    • Martyn P. Chipperfield
    • Slimane Bekki
    • Mark Weber
    Reviews
    Nature
    Volume: 549, P: 211-218