Articles sur carbon sequestration

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Long’s Peak framed by rock outcrop, Rocky Mountain National Park, Colorado. Roy Luck

Nitrogen from rock could fuel more plant growth around the world – but not enough to prevent climate change

Scientists have long thought most nitrogen in Earth's ecosystems comes from the air, but new research shows it also is released as rocks weather. This could boost plant growth and help sequester carbon – but not fast enough to avert climate change, as some pundits have claimed.
Giant kelp can grow up to 60cm a day, given the right conditions. Joe Belanger/shutterstock.com

How farming giant seaweed can feed fish and fix the climate

In an extract from his new book, Tim Flannery explains how giant kelp farms could suck carbon dioxide from the air and store it in the ocean's depths, while encouraging species like fish and oysters.
Coal seam gas is only one issue for managing one of Australia’s most important geological resources. AAP Image/Dean Lewins

Coal seam gas is just the latest round in an underground war

In a recent article on The Conversation, Queensland coal seam gas (CSG) researchers argued that the industry is progressing faster than the science, leading to concerns over fugitive emissions and impacts…
Melt pond on the Greenland ice sheet. NASA / Michael Studinger

What climate tipping points should we be looking out for?

The concept of a “tipping point” – a threshold beyond which a system shifts to a new state – is becoming a familiar one in discussions of the climate. Examples of tipping points are everywhere: a glass…
Phytoplankon: blooming marvellous. Norman Kuring

Saharan dust feeds the ocean and locks away carbon too

The Saharan dust that clogged air and dirtied cars recently may seem like a nuisance, but in fact contains some essential nutrients – if, that is, you’re phytoplankton. The dust and sand blown from Africa…
It’s expensive to apply nitrogen fertiliser, but there are other ways to store carbon in soils. Jiggs Images

Storing carbon in soil: potential opportunities outweigh limits

For several years, and particularly since the advent of the Coalition’s Direct Action policy for reducing emissions, the potential of agricultural soils in Australia to soak up carbon has been widely debated…
Australia’s seagrass could earn A$35 million in carbon credits each year, if we have a trading scheme. sandwichgirl/Flickr

Seagrass is a huge carbon store, but will government value it?

Australia is surrounded by a thin green line of seagrass meadows potentially worth A$5.4 billion on international carbon markets, and which could contribute to Australia and other nations meeting carbon…
We need to get our hands dirty and have a look at our soils. Flickr/JerseyRed

A more sustainable Australia: we need to talk about our soils

**A more sustainable Australia* As the 2013 election campaign continues, we’ve asked academics to look at some of the long-term issues affecting Australia – the issues that will shape our future.* Our…

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