- http://www.toptenz.net/top-10-endangered-trees.php#ixzz1rQoudmv8
- http://webecoist.momtastic.com
- http://www.toptenz.net/top-10-endangered-trees.php#ixzz1rQpKcbAx
- botany.hawaii.edu.
- http://www.toptenz.net/top-10-endangered-trees.php#ixzz1rQps1JHt
- St. Helena National Trust.
- http://www.toptenz.net/top-10-endangered-trees.php#ixzz1rQqHt6Vk
- African Blackwood Conservation Project.
- http://www.toptenz.net/top-10-endangered-trees.php#ixzz1rQqm5frO
- http://www.statisticbrain.com/trees-cut-down-each-year/
- http://www.50waystohelp.com/
- http://www.thedailygreen.com/going-green/latest/how-to-save-trees-forests#fbIndex3
- http://www.haryali.org/how-to-save-tree.htm
- http://www.youtube.com/watch?v=UZ6gUGDV7lc
- http://www.youtube.com/watch?v=_WkoFOoPJME
- http://www.youtube.com/watch?v=EBRMcahY008
- http://www.haryali.org/importance-of-trees.htm
- http://www.haryali.org/tree-planting-benefits.htm
- http://www.environmentabout.com/64/15-ways-to-mitigate-the-deforestation-and-save-trees
