The Nature Needs Half Declaration

50% of the planet protected by 2050. Be a part of the solution.

Sign the Declaration

Nature Needs Half in the news

Photo: Peter Cairns / Wild Wonders of Europe

See what people are saying

Featured Case Study

Gabon Marine Protected Area Network

Photo: Barry Peters

Learn More

Space for Nature

See how the Nature Needs Half vision can be realized in practice by setting aside space for nature in this Zoological Society of London video.

Photo: Morgan Heim

Watch the video

Read the Nature Needs Half declaration and see our full list of over 30 international signatories.

Join the Movement

Nature Needs Half is a vision and practice for people and planet.

Nature Needs Half

Why Now?

How do we achieve the goal?

Nature Needs Half  is a science-based and common-sense vision of a relationship between people and nature that ensures enough natural areas of land and water are protected and interconnected – and of sufficient size and resiliency – to provide life-supporting ecosystem and biodiversity services that are essential  to both  human health and prosperity and  a bountiful, beautiful legacy of wild nature.


The magnitude of the global ecological crisis we face today – and the availability of better and more accurate ecological information — demands that conservationists provide a clear and accurate global conservation target that will realistically keep our planet viable.


Reaching the goal of at least half is ambitious but achievable. The short term milestone for the progress of this vision is to move urgently to protect at least half of the planet’s remaining large, mostly intact wilderness areas (for example Boreal Forests, the Amazon Basin, and formally protecting Antarctica), while achieving incremental gains by quickly protecting surviving remnants in fragmented areas of very high biological importance.


Exciting news! Sanctuary Asia has joined the movement. When #India safeguards nature, people thrive. Join them in signing the Nature Needs Half Declaration! >>

#KeepItWild #Conservation #NatureNeedsHalf #SaveTheTigers Leonardo DiCaprio Foundation
... See MoreSee Less

View on Facebook

Ending the biodiversity crisis is possible and the solution starts with YOU. 🌏 #NatureNeedsHalf #KeepItWild #Conservation Leonardo DiCaprio Foundation

Read and sign the Nature Needs Half Declaration today! >>
... See MoreSee Less

View on Facebook

Happy #WorldWildlifeConservationDay! Please remember that YOUR voice matters in protecting this planet's wildlife and biodiversity. 🙌🏼🐘🦍 ... See MoreSee Less

View on Facebook

Exciting news! @SanctuaryAsia has joined the movement. When #India safeguards nature, people thrive. Join them in signing the #NatureNeedsHalf Declaration! >> #KeepItWild #Conservation #SaveTheTigers

We have a lot of work to do... Out of 91,523 species evaluated: 25,821 threatened, 866 #extinct, 69 extinct in the wild, 11,783 vulnerable, 8,455 endangered, and 5,583 critically endangered. @IUCNRedList

Collaboration is key when we are tackling complicated issues like conservation and environmental protection. Here are some successes from 2017! #conservationoptimism

Ending the biodiversity crisis is possible and the solution starts with YOU. Join the movement by reading and signing the #NatureNeedsHalf Declaration >> 🌍 #KeepItWild #Conservation

Bears Ears and Grand Staircase-Escalante drastically cut by Presidential decree

Load More...


Total Amount of Oceans Protected*


Total Land Area Protected*


Nature Needs Half Goal: It's Possible!

*According to the United Nations Environment Programme (UNEP) 2014 Protected Planet Report

Be a part of Nature Needs Half! Volunteers needed.