The Indigenous Guarani people from the São Paulo coast are traditional consumers of jussara palm hearts and have been instrumental in reversing the palm's decline by planting thousands of trees inside their reserve.
Morocco's mountain people have grown olive trees since ancient times, but unstable weather due to climate change has recently placed that heritage in jeopardy.
The waist-high trees in Jose Francisco Merino Umaña's field have sprouted branches and lush green leaves, but their modest size doesn't convey the full value they hold to this farmer.