By the year 2010 tiger numbers had been plummeting for a century. It's thought that there were once around 100,000 wild tigers, but that had dropped to as few as 3,200 - a drastic decline of over 95%.
That's why Tx2 was born: a 12 year plan to double the number of wild tigers by 2022, the next Chinese Year of the Tiger.
In 2016 we're at the halfway point, and this news that tiger numbers have begun to rise is a signal that conservation efforts are working.
The success so far has come from only a few of the countries with wild tiger populations. India, Nepal, Bhutan and Russia have all stepped up their tiger conservation efforts since 2010, and have all seen an increase in tiger numbers.
Other tiger range countries aren't faring so well, especially in south-east Asia, where poaching is at unprecedented levels. If tiger conservation becomes a priority across Asia, we'll be well on our way to Tx2.