The challenge is quite simple. Attempt to refuse single-use plastic during July. "Single-use" includes plastic shopping bags, plastic cups, straws, plastic packaging...basically anything that's intended only to be used once and then discarded. If refusing ALL single-use plastic sounds too daunting this time, try the TOP 4 challenge (plastic bags, bottles takeaway coffee cups & straws).
Why you should participate
Apart from the small amount of plastic which has been incinerated EVERY piece of plastic which was ever produced still exists on earth somewhere. In the first 10 years of this century MORE plastic was produced than the entire last century!