Large population size and greater consumption of resources.
Explanation:
In 2012, China's ecological footprint was 2.5 times its biocapacity. Thus was experienced a biocapacity deficit, though china has an ecological footprint of 2.1 GHA.
That is 80% of the global average that is 2.7 GHA. The ecological footprint of China is the largest in the world due to its population size.
In Europe, the ecological footprint in 2012 was 4.78 per person and had a biocapacity of 2.06%. That is three times lesser than average than china which is 2.3 GHA.