Articles on CO2

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A sensor monitors carbon dioxide from the rooftop of the SF Exploratorium. Alexis Shusterman

Low-cost sensors track CO2 where it counts

Scientists build network of inexpensive air monitors to track emissions with fine-grained spatial detail – an alternative to satellites or pricey land-based CO2 monitors.
Phytoplankton are responsible for half the world’s productivity. Here, a phytoplankton bloom in the northern Pacific. NASA Goddard Space Flight Center/Flickr

Tiny marine plants face a mixed bag thanks to climate change

You may not have heard of them or given them much thought, but phytoplankton — the microscopic plants that grow throughout the world’s oceans — are the foundation of oceanic food webs. Although tiny, they…
To match the US, Australia would have to increase its emissions reduction target to 25% below 2000 levels. AAP Image/Alan Porritt

FactCheck: are Australian and US climate targets the same?

If you use the full Kyoto period — 1990 to 2020 — the US is minus 5% and Australia is almost exactly the same. Environment minister Greg Hunt, Radio National, November 17. *We and the United States are…
Plants use photosynthesis to build molecules and energy they can use. By copying plants, humans can make cleaner fuels. Ranjit Bhatnagar/Flickr

To shift away from fossil fuels, we need to copy plants

Most of the energy that fuels our lives comes from plants. Whether it is a fossil fuel that was formed hundreds of millions of years ago or the food we eat, all carbon-borne energy has its ultimate origins…

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