NASA-funded Network Tracks the Recent Rise and Fall of Ozone Depleting Pollutants

Due in large part to effective monitoring, and subsequent reaction to the 2018 report, data and analysis in these two papers (published in February 2021) suggest that both the renewed…

The Ozone Hole Returns to Both Poles

Some years ago, relating to a project I was carrying out, I asked the Max Planck Institute and Cambridge University –both experts in this field-if it were possible that Antarctic…

Ozone on the rise – suggests pollution controls aren’t ‘working as well as we thought’

In a first-ever study using ozone data collected by commercial aircraft, researchers from the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder found that…

Emissions of several ozone-depleting chemicals are larger than expected

Recovering and safely destroying the sources of these chemicals could speed ozone recovery and reduce climate change Massachusetts Institute of Technology In 2016, scientists at MIT and elsewhere observed the…

Ozone-depleting substances caused half of late 20th-century Arctic warming, says study

Implicated in a third of overall global warming at the time Earth Institute at Columbia University A scientific paper published in 1985 was the first to report a burgeoning hole…

Claim: The Montreal Protocol Saved the Arctic From Global Warming

Guest essay by Eric Worrall A novel excuse for why RCP 8.5 is running way too hot, yet is still essentially correct, from the “ship of fools” home base, the…

Hole In The Ozone Layer Shrinks To Smallest Size On Record

From The Daily Caller NASA image/ screen grab Jason Hopkins Immigration and politics reporter October 22, 2019 12:18 PM ET The hole in the ozone layer shrank to its smallest…

New paper connects upper stratospheric ozone changes to the solar cycle

The authors write in this plain language summary: Changes in the output of the Sun are thought to influence surface weather and climate through a set of processes initiated by…

Despite growing larger this year, NASA says the Antarctic ozone hole is healing

This year, the South Pole region of Antarctica was slightly colder than the previous few years, so the ozone hole grew larger. However, scientists from NASA have developed models to…

Location of large mystery source of banned ozone depleting substance uncovered

From the University of Bristol The compound, carbon tetrachloride, contributes to the destruction of the Earth’s ozone layer, which protects us from harmful ultraviolet radiation. As a result, the production…

Ooops. Despite Montreal Protocol, ozone-destroying CFC's on the rise

NOAA finds rising emissions of ozone-destroying chemical banned by Montreal Protocol Emissions of one of the chemicals most responsible for the Antarctic ozone hole are on the rise, despite an…

Ozone at lower latitudes is not recovering, despite Antarctic ozone hole healing

From IMPERIAL COLLEGE LONDON The ozone layer – which protects us from harmful ultraviolet radiation – is recovering at the poles, but unexpected decreases in part of the atmosphere may be…

NASA Claim: Definitive Evidence of the Montreal Protocol’s Success on ‘Ozone Hole’ – but may be premature

From the “Montreal Protocol success is not weather, unless it is” department and NASA Goddard: Using measurements from NASA’s Aura satellite, scientists studied chlorine within the Antarctic ozone hole over…

The Profound and Dominant Impact of Atmospheric Water Vapor upon Ozone Destruction

Guest essay by Michael Wallace, Hydrologist The prevailing model of seasonal and long term global ozone depletion is grounded in a principal assertion that emissions of industrial refrigerants and propellants…

Earth’s ‘ozone hole’ shrinks to lowest since 1988

From NASA Goddard: Warm Air Helped Make 2017 Ozone Hole Smallest Since 1988 Measurements from satellites this year showed the hole in Earth’s ozone layer that forms over Antarctica each…

Ozone treaty taking a bite out of US greenhouse gas emissions

Public Release: 14-Aug-2017 American Geophysical Union From Eurekalert WASHINGTON D.C. — The Montreal Protocol, the international treaty adopted to restore Earth’s protective ozone layer in 1989, has significantly reduced emissions…

Study: trees in cities actually make pollution worse during heat waves

From the AMERICAN CHEMICAL SOCIETY comes this counter-intuitive finding: During heat waves, urban trees can increase ground-level ozone Planting trees is a popular strategy to help make cities “greener,” both…

Claim: 'The blob' in the Pacific boosted Western US ozone levels

From the UNIVERSITY OF WASHINGTON ‘The blob’ of abnormal conditions boosted Western US ozone levels An unusually warm patch of seawater off the West Coast in late 2014 and 2015,…

Claim: forget CO2, it's the Methane and CFC's that will drown us in the ocean

From the “it’s that Methane and Ozone Emergency again” department, comes this breathless headline, for a kitchen sink press release that even includes the obligatory faux sinking atoll of Tuvalu. I…

Newly discovered EPA report says ozone measurements may be way off – cities may be in compliance

EPA Surface Ozone Readings are Inflated by Mercury Vapor – The EPA has known about positive biases caused by mercury vapor since 1999 Guest essay by Forrest M. Mims III Accurate…

Salvaging the Unsalvageable: HFCs and the UN Climate Change Fiasco

Guest opinion: Dr. Tim Ball “Oh what a tangled web we weave, when first we practise to deceive!” Sir Walter Scott (1771-1832) Support for the global warming/climate change agenda is…

Interesting climate sensitivity analysis: Do variations in CO2 actually cause significant global warming?

Guest essay by David Bennett Laing In 1900, Knut Ångström concluded from a famous experiment that very little warming results from a doubling of atmospheric CO2. Although no similar experiment has…

Study: Antarctica has a 'pause' in warming – may be linked to ozone hole stabilization

From the Steig et al. is still dead department: The rapid warming of the Antarctic Peninsula, which occurred from the early-1950s to the late 1990s, has paused. Stabilisation of the…

Scientists claim they have observed first signs of healing in the Antarctic ozone layer

New research has identified clear signs that the hole in the Antarctic ozone layer is beginning to close. Scientists from the University of Leeds were part of an international team…