How the world's northernmost caves could hold answers to climate change
Award-winning geologist and climate researcher Gina Moseley has led expeditions to some of the world's most remote caves. The samples she collects there can help us understand how the environment is evolving.
04:08 - Source: CNN
Call to Earth 135 videos
gina moseley cave geology c2e spc intl_00003308.png
How the world's northernmost caves could hold answers to climate change
04:08
Now playing
- Source: CNN
living Seawalls card
How 'Living Seawalls' can help coastal communities
03:07
Now playing
- Source: CNN
Bermuda snails thumbnail
Endangered snails bred in captivity are released into the wild
03:59
Now playing
- Source: CNN
yellow crested cockatoo hong kong hnk spc intl_00011905.png
'A symbol of hope': the endangered cockatoos thriving 2,000 miles from home
03:57
Now playing
- Source: CNN
Bubbl card
Bursting the bubble on climate change
03:58
Now playing
- Source: CNN
Mauritius card
Restoring a tropical island paradise
03:01
Now playing
- Source: CNN
oceanways miami
Submarine that sucks plastic from the ocean tested in the US
03:22
Now playing
- Source: CNN
cte kris tompkins video
Why Kristine Tompkins is a rewilding pioneer
04:03
Now playing
- Source: CNN
CTE caterpillar video card
Why Mexico City needs more bugs
03:46
Now playing
- Source: CNN
indigenous sustainability rainforest card
Protecting the land of the spirit bear
04:07
Now playing
- Source: CNN
call to earth africa gray parrot endangered species spc_00004107.png
Saving one of the world's most trafficked birds
03:30
Now playing
- Source: CNN
Paul Nicklen and Cristina Mittermeier card video
These photographers are working to protect the oceans
03:48
Now playing
- Source: CNN
Mauritius fruit bat card
Conservationists want humans and flying foxes to coexist
03:59
Now playing
- Source: CNN
Kitasu Bay
This indigenous community created a marine refuge in Canada
03:18
Now playing
- Source: CNN
whal thumbnail
The conservationists guarding whales from ship strikes
02:51
Now playing
- Source: CNN
Chester Zoo rare species baby boom c2e spc intl_00015828.png
The UK zoo in the midst of a baby boom of rare species
03:51
Now playing
- Source: CNN
African penguin video card image
Conservationists are building ceramic nests to help endangered penguins
03:56
Now playing
- Source: CNN
Green school bali card
Bamboo school cultivates green warriors
03:57
Now playing
- Source: CNN
Paula Kahumbu still
Paula Kahumbu: Voice of the wild
24:09
Now playing
- Source: CNN
Sophie Green rhinos
Hyperrealistic paintings of animals promote conservation
04:09
Now playing
- Source: CNN
call to earth brazil conservation endangered forest spc_00004511.png
The award-winning conservationist fighting to save a forest
03:40
Now playing
- Source: CNN
call to earth ecotourism safari africa spc_00014408.png
Going green in one of Africa's top safari destinations
04:03
Now playing
- Source: CNN
call to earth day oceans highlights wrap 2 spc c2e intl_00002130.png
'Protect our oceans, protect our future': Young people come together for Call to Earth Day 2022
01:29
Now playing
- Source: CNN
vreni haussermann patagonia fjords c2e spc intl_00000000.png
Protecting Patagonia's precious fjords
01:58
Now playing
- Source: CNN
Ocean Cleanup Interceptor LA still
The 'Interceptor' capturing plastic trash at the source
03:23
Now playing
- Source: CNN
ganges flowers card
Cleaning up one of the world's most polluted waterways
03:50
Now playing
- Source: CNN
HK oyster reef card
Restoring Hong Kong's oyster reefs
03:14
Now playing
- Source: CNN
Sylvia Earle card
Sylvia Earle: Diving for hope
24:00
Now playing
- Source: CNN
Shalise Leesfield 1
The Australian teenager making the ocean safer for sharks