Australia, blue carbon and COP21

Australia, blue carbon and COP21

COP21 underscores the importance of marine science in containing climate change and conserving life as we know it. The Paris Agreement (PDF) aims to limit the increase in global average temperature to 1.5° above pre-industrial levels by balancing anthropogenic...
Athletes of the Great Barrier Reef

Athletes of the Great Barrier Reef

Increased greenhouse gas emissions into the atmosphere is causing more carbon dioxide (CO2) to be absorbed by the oceans, producing ocean acidification.  Increased CO2  would normally be expected to reduce aerobic performance of fish.  Somewhat surprisingly, research...
Precambrian, Devonian, Triassic and Jurassic reefs

Precambrian, Devonian, Triassic and Jurassic reefs

The study of ancient (paleo) reefs is a fertile source of information on historic changes in climate and water quality.  Scientists are concerned that current ocean conditions are more extreme than those experienced by marine ecosystems over past millions of years...
Seeing the sea-level rise

Seeing the sea-level rise

Digital mapping, visualization and wave-modelling technology is helping scientists predict the effect of rising sea levels at Lizard Island and other coral reef locations.   Scientists commenced work on the Australian Sea-Level Rise Project at Lizard Island in...
Paleo reefs  – the last 126,000 years

Paleo reefs – the last 126,000 years

Marine geologists are investigating the effects of changing sea levels and sea surface temperatures on reef development, with some surprising results.  This graph shows the eustatic (global) sea level for the last 360,000 years.  1kya = 1,000 years ago.   Around...
Seagrass & blue carbon

Seagrass & blue carbon

Coral reefs comprise only 7% of the Great Barrier Reef World Heritage Area.  The rest is an extraordinary variety of marine habitats, including algal and sponge gardens, mangroves, tidal marshes, sand… and seagrass.  Fifteen species of seagrass are found in the...