More than 1-in-3 species of trees could disappear in 192 countries
Scientists say at least 16,425 tree species are at risk of extinction as agriculture expands and the climate changes.
International Union for Conservation of Nature (IUCN)
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IUCN finds more than half of world's mangrove ecosystems could collapse
Mangrove ecosystems harbor fish and wildlife, protect against sea level rise, tides and storm surges, and store carbon.
First global survey finds 44% of migratory species in decline
Some migratory species are improving but 22% of those listed are threatened with extinction, including nearly all the fish.
UNESCO World Heritage sites contain 20% of known species
The 1,157 protected sites account for less than 1% of Earth's surface but play vital roles as biodiversity hotspots.
New compact boosts marine protected areas
Five nations announced a new alliance to promote more conservation of marine ecosystems in the fight against climate change.
IUCN finds climate top threat to UNESCO sites
Climate change is damaging one-third of the world's UNESCO sites and has become the single-biggest threat they face, IUCN warned.
High seas treaty moves a step closer to reality among U.N. delegates
Diplomats, experts and international organizations are negotiating a new treaty aimed at protecting the rich biodiversity of open oceans against commercial pressures.
An 'alphabet soup' of high seas rules stands in way of sustainability
Because these ocean areas and deep seabeds lie beyond national jurisdictions, they fall within a patchwork of laws overseen mostly by U.N.-affiliated international organizations.