Global Tree Assessment

Support us

Support us to give all trees a conservation assessment, in order to better safeguard the world’s trees.

Every donation will contribute to the GTA.

  • US$50 to determine the conservation status of a single tree species
  • US$1,000 to carry out conservation assessments for a genus
  • US$5,000 to support a Red List training workshop
  • US$15,000 to convene a regional meeting of tree experts


Gift Aid

Please don't forget to Gift Aid your donation. This means that, if you are a UK taxpayer, we can reclaim the tax on your donation. Your gift can increase by 25% without it costing you an extra penny.

To qualify for Gift Aid, what you pay in income tax or capital gains tax must at least equal the amount that all the charities or Community Amateur Sports Clubs (CASC) that you donate to will reclaim on your gifts for that tax year. Other taxes such as VAT and Council Tax do not apply.