Beta
Through that intervening 300 million years, it has changed dramatically. The last period of glaciation was 12,000 years ago, when Sydney Harbour was a river valley. It was carved by glaciers at that time. When people think about climate change and rising ocean levels - at that time the ocean was 120 metres lower than it is today.
So what happened is when those glaciers melted 12,000 years ago – what is now Sydney Harbour was a river valley that was drowned. The water flooded in and the water level rose 120 metres. If you think about that in the context of where Sydney exists now, the Sydney of today once would have been well above the water line.
When those glaciers melted 12,000 years ago – what is now Sydney Harbour was a river valley that was drowned. The water flooded in and the water level rose 120 metres.
Through that intervening 300 million years, it has changed dramatically. The last period of glaciation was 12,000 years ago, when Sydney Harbour was a river valley. It was carved by glaciers at that time. When people think about climate change and rising ocean levels - at that time the ocean was 120 metres lower than it is today.
So what happened is when those glaciers melted 12,000 years ago – what is now Sydney Harbour was a river valley that was drowned. The water flooded in and the water level rose 120 metres. If you think about that in the context of where Sydney exists now, the Sydney of today once would have been well above the water line.
When those glaciers melted 12,000 years ago – what is now Sydney Harbour was a river valley that was drowned. The water flooded in and the water level rose 120 metres.
You might like...
Nature as music
A lot of our music is very much to a beat that's super regular, and it feels quite grid-like. Through Nature, you can start to feel a pulse, writes Bruny Island composer and guitarist Julius Schwing. It's more like a cycle. The sound of Nature is as incredible as the visual aspect.
Somewhere Along the South Cape Bay Track
Writer Helen Cushing explores the white foamy waves, kelp, ecology and exquisite beauty of South Cape Bay in Tasmania's South-West Wilderness World Heritage area.
What is Kuno?
Kuno is the nature platform for life on Earth. A two-way platform of contributors and users, Kuno is created by us, for us. Kuno's mission is to kindle the loving bond between people and Earth to ensure a future where both thrive together.
Bruny Island Bird Festival
It's well documented that people with a connection to Nature - or to something they like - are far more active in conserving it, writes BirdLife Tasmania's Karen Dick. The Bruny Island Bird Festival occurs every two years and is a critical event to help develop that connection. It's also a time to inspire the next generation.
Newsletter
Sign up to keep in touch with articles, updates, events or news from Kuno, your platform for nature