Let's start with this.

There are at least 27 million slaves worldwide. That’s roughly the combined population of Australia and New Zealand. Crikey!

Forest clearance threatens Sumatran tigers

Conservation group WWF Monday urged companies to drop plans to clear Indonesian forest areas where infra-red cameras have captured footage of rare Sumatran tigers and their cubs.

A Greenpeace photo of Sumatra island shows receding peatland forest after trees were cut for paper and pulpwood. There are fewer than 400 Sumatran tigers left in the wild. Environmental activists say the animals are increasingly coming into contact with people as a result of their natural habitat being lost due to deforestation for timber and palm oil plantations.

Graphic on the world's wild tiger populations. There are fewer than 400 Sumatran tigers left in the wild.

Camera catches bulldozer destroying Sumatra tiger forest

Some more links :
http://www.savesumatra.org/
http://www.theliteracysite.com/clickToGive/campaign.faces?siteId=6&campaign=S...
http://www.worldwildlife.org/species/finder/tigers/index.html
http://www.thepetitionsite.com/1/save-sumatran-tigers-from-extinction/