"A plastic bag charge is welcome news, but let's not get carried away," spokesman Craig Bennett said.
"If Nick Clegg wants to champion the environment he must do much better - starting by allowing Lib Dem peers to back a 2030 target for decarbonising the power sector when the Energy Bill reaches the House of Lords."
More top news
Coca Cola said the issue at the Northern Ireland factory was identified "immediately" and had not affected any products currently on sale.
Alexander Blackman will walk free from prison in two weeks. Here we take a look at the timeline of events surrounding his case.
The former royal marine could be released in as little as two weeks after his sentence was reduced from murder to manslaughter.