PHOTO VIA WIKIPEDIA, CC BY-SA
The picture
Rivers, lakes and wetlands hold a huge share of biodiversity in a tiny share of the world’s water - and freshwater wildlife has declined faster than land or ocean species. Dams, pollution and over-extraction are the main pressures.
The science
Freshwater covers under 1% of Earth’s surface but supports roughly 10% of all known species.
In numbers
Worth repeating at dinner
Monitored freshwater populations fell around 83% since 1970 - the steepest of any group.
- WWF
Wetlands filter water and buffer floods for people and wildlife.
- WWF
What they face
Dams block fish migration and alter rivers.
WWF
Runoff and over-use degrade rivers and wetlands.
WWF
What is already working
Taking out obsolete dams reconnects rivers.
Restoring wetlands brings back fish and birds.
Reasons for hope
Barrier removals are reviving migratory fish in several rivers.
Meet them
Small actions that reach them
People doing the big work
Hopeling is also a pocket companion: one fact, one small act a day. Open the app