Coffee stirrers: wood vs. plastic. Wood wins.
In every coffee shop we face a choice: should we use the plastic coffee stirrers of wooden ones? Well, hesitate no more: use wooden. Why? Production and disposal of wooden coffee stirrers have smaller impact on environment. How do we know that? We have calculated the Composite Environment Impact Index of both, tracing every step of production, use, and disposal of the sticks, and found out that, in this case wood uses more resources, but pollutes much less, than plastic. Here are the calculations, click on the item name to trace the environmental impact calculations: