Nada Derek

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  • Research Projects Officer, Oceans and Atmosphere, Climate Science Centre, CSIRO
The Cape Grim observatory, home of the ‘world’s cleanest air’… and rising greenhouse gases. CSIRO

Why there’s more greenhouse gas in the atmosphere than you may have realised

Zoe Loh, CSIRO; Blagoj Mitrevski, CSIRO; David Etheridge, CSIRO; Nada Derek, CSIRO; Paul Fraser, CSIRO; Paul Krummel, CSIRO; Paul Steele, CSIRO; Ray Langenfelds, CSIRO, and Sam Cleland, Australian Bureau of Meteorology

Carbon dioxide levels in the atmosphere are at 414 parts per million. But thanks to a recalculation of methane’s warming power, the total amount of greenhouse gases is now equivalent to more than 500.
Sunset at Australia’s Cape Grim observatory, one of the key global background monitoring sites for CFC-11. Paul Krummel/CSIRO

Eastern China pinpointed as source of rogue ozone‑depleting emissions

Paul Krummel, CSIRO; Bronwyn Dunse, CSIRO; Nada Derek, CSIRO; Paul Fraser, CSIRO, and Paul Steele, CSIRO

For several years, emissions of CFCs have been rising, in apparent defiance of a global ban in place since 2010. A new global detective effort has traced the source to two eastern Chinese provinces.
By collecting air at pristine Cape Grim since 1978, scientists have been able to track the concentration of ozone depleting substances. AAP/Bureau of Meteorology

What are ozone depleting substances?

Paul Fraser, CSIRO; Nada Derek, CSIRO; Paul Krummel, CSIRO, and Paul Steele, CSIRO

SAVING THE OZONE: Part four in our series exploring the Montreal Protocol on Substances that Deplete the Ozone Layer – dubbed “the world’s most successful environmental agreement” – looks at the substances…