What is Global Change?

The running title of this column, the blue marble, reads “Traveling the world investigating what global change is doing to aquatic ecosystems ”, but what is global change? I suppose all of us have an intuitive…

Marine Life sandwiched by rising CO2

The oceans have absorbed almost 50 % of the CO2 humans released into the atmosphere, which has driven CO2 in the oceans to rise, causing - because of the effect of increasing CO2 in producing carbonic…

The Earth Hour: worth joining?

In a few hours, 8:30 to 9:30 pm, WWF invites us to join the Earth Hour (www.earthhour.org) and switch off lights on a gesture to remind us that our energy consumption patterns are taking a big toll on…

What did James Cameron see 11 km under?

The Mariana Trench Challenger Deep at 10897 m, the deepest point in the world’s ocean, is featured today around the world media. The reason: the successful descent, and return to the sea surface, of the…
Vast meadows of seagrass are thought to be the oldest living things on the planet. Flickr/Submon

100,000‑year‑old seagrass could be the world’s oldest organism

An ancient seagrass that spans up to 15 kilometres and weighs more than 6,000 metric tonnes may be more than 100,000 years old - making it the oldest living organism, Australian researchers have found…
It’s time to pay attention to warnings from the Arctic. NOAA Photo Library

Teetering on a tipping point: dangerous climate change in the Arctic

We are seeing the first signs of dangerous climate change in the Arctic. This is our warning that humanity is facing a dire future. The Arctic region is fast approaching a series of “tipping points” that…
The wrecking of the MV Tycoon happened just as Christmas Island’s famous crabs began spawning. Justin Gilligan

Christmas Island oil spill: time to value natural treasures, not just trade

Christmas Island has been once again in the headlines: not because of incidents involving asylum-seekers, but because of the recent sinking and breaking up of the Panamanian phosphate carrier MC Tycoon…

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