The Pachamama Alliance held an Environmental protection public lecture in qingdao. It said how to reduce the environmental pressure. It's sponsored and organized by the QINGDAO CHAMBER OF E-COMMERCE. Here is the volunteer certificate:

Many company attend, we also attend. 

This is a donation sign, when you donate, you will get one.

In this public lecture, using the straw products or paper products, also a good way to reduce the environment pressure. It will be resloved by soil, no harmful for environment.