In Australia, the Rangers survey the biodiversity around Cairns Airport.

To date, they have identified 12 threatened species in the area.

“Every few meters, we seem like ” “we're into a different species of mangroves, ” “different species of tree composition, ” “and then these little patches of ” “rainforest, it's quite diverse.

” “That's why it's really important ” “to keep these ecosystems ” “healthy, because we know ” “those species are endangered.

” I started this Australian journey in the desert where to keep that fragile ecosystem healthy, the community is waging war on cats and camels.

Here, the enemy is smaller but equally dangerous.

“So that is the famous ” “Australian cane toad ” “...and this guy, innocuous as he looks, ” “has decimated wildlife here in Australia, ” “but also other islands.

” “Initially introduced to deal with a beetle that was, ” “you know, eating up cane fields.

” “That's why they call them cane toads, but obviously ” “they didn't really fancy the beetles ” “but fancied pretty much ” “everything else and anything ” “that can fit into this giant ” “wide mouth... itll eat.

” “So baby birds, eggs, ” “insects, little animals, little marsupials.

” “This little guy is big trouble.

” Trouble that needs to be minimized.

Normally, if found in nature reserves, Rangers euthanize the toads to reduce their impact on other species.

In my lifetime, we've destroyed half the world's mangrove forests.

The degradation of our coastal ecosystems could be releasing up to 1 billion tons of carbon dioxide into the atmosphere each year While growing new mangroves could also be a part of the long term solution.

We must do what we can to protect the mature carbon-rich mangroves we have left.

Global wetlands matter, if we're going to limit the temperature of our planet.