If drinking a tea with a minimal impact on the environment is important to you, then consider PG Tips.
Unilever, the company that owns and produces PG Tips, recently launched a plan to cut in half the environmental impact of its products. The plan covers obvious items such as the greenhouse gas emissions, waste, water use as well as reducing impact by supliers and consumers, from agricultural growers to the packaging and waste water produced by consumers of company product, such as PG Tips.
Editorial Comment: Vote with your wallet by choosing products made in this way.
You can read about this plan in-depth at a great article in the Guardian (UK) Newspaper.