> you can be quite confident that your plastic rubbish won’t reach the ocean

Alas this appears to be false. Plastic is being exported to Thailand et al for "recycling", since china has stopped accepting lowgrade rubbish.

This means that when they "process" it, can can endup being dumped in rivers, or blown by the wind. https://www.independent.co.uk/environment/uk-plastic-polluti...

Now, one can argue that plastic is a permanent store of carbon. The problem is that we continue to produce plastic, which releases loads of carbon.

So unless we reduce, reuse, and as a last resort recycled, we are continue to have issues.