carbon sink

How beavers are reviving wetlands

How beavers are reviving wetlands

We are losing wetlands three times faster than forests, according to the Ramsar Convention on Wetlands. When it comes to restoring them to their natural state there is one hero with remarkable powers - the beaver. Wetlands store water, act as a carbon sink, and are a source of food. The Ramsar Convention on Wetlands says they do more for humanity than all other terrestrial ecosystems - and yet they are disappearing at an alarming rate. The main problems are agricultural and urban expansion, as well as droughts and higher temperatures brought about by climate change. But if you have a river and a beaver it may be possible to halt this process.

A 'buffer' against rising seas: How one group is trying to save Metro Vancouver's salt marshes

A 'buffer' against rising seas: How one group is trying to save Metro Vancouver's salt marshes

As the financial costs of climate change climb, experts and governments are quickly coming to the consensus that man-made structures won't be enough to protect coastal communities. For biologist Dan Stewart, the answer is obvious, and on a recent overcast day, he was looking at it: from the edge of the Boundary Bay dike, a more than 200 metre-thick band of salt marsh reached out to the sea.

Why do oceans matter for climate change?

Why do oceans matter for climate change?

As the climate crisis gets worse, oceans — the planet’s greatest carbon sink — can no longer be overlooked. Spanning 70 per cent of the globe, oceans have absorbed nearly a third of the planet-warming greenhouse gas emissions caused by humans and 90 per cent of the excess heat those gases create. The heat stored in the Earth’s entire atmosphere is equal to what’s stored in the top few metres of our oceans. If that wasn’t enough, oceans produce more than 50 per cent of the planet’s oxygen and regulate our climate and weather patterns.

Why do oceans matter for climate change?

Why do oceans matter for climate change?

As the climate crisis gets worse, oceans — the planet’s greatest carbon sink — can no longer be overlooked. Spanning 70 per cent of the globe, oceans have absorbed nearly a third of the planet-warming greenhouse gas emissions caused by humans and 90 per cent of the excess heat those gases create. The heat stored in the Earth’s entire atmosphere is equal to what’s stored in the top few metres of our oceans. If that wasn’t enough, oceans produce more than 50 per cent of the planet’s oxygen and regulate our climate and weather patterns.