Science
Climate campaigners stage Halloween protest at Scottish first minister's residence
Environmental groups held a Halloween-themed protest outside Bute House in Edinburgh against the Scottish government's approval of a new gas-fired power station at Peterhead. Protesters in masks carried placards like 'this decision will haunt you'. Campaigners called the decision a catastrophic failure, while the government said it remained committed to tackling climate change.

This summary is based on reporting by BBC News.
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