Insulate Britain protesters carried out a number of demonstrations in the UK on Tuesday morning.
They are demanding that the government insulate all social housing in the UK by 2025 and retrofit all homes with insulation by 2030.
The organisation, which has caused misery for drivers with protesters sitting on the M25 motorway and other major roads, had warned a pause to its “campaign of civil resistance” ran out on October 25.
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Demonstrators blocked the carriageway near junction 6 of the M56, close to Manchester Airport, and around 15 protesters blocked Paradise Circus in Birmingham city centre.
And there were other blockades in Hertfordshire, near the M25, during rush hour as protesters sat on roads and glued their hands to the carriageway. It is now the eighth week of demonstrations in the UK.
Around 20 demonstrators arrived at the M25 but were stopped by police from getting into the road at about 8am.
Six sat on the pavement with a banner, and some glued themselves to the ground.
Another two managed to glue themselves to one lane of the carriageway on a quiet part of the roundabout.
A group of officers lifted activists from the pavement and putting them in the back of a van.
Reverend Sue Parfitt, 79, a retired family therapist from Bristol, was among those detained.
Jess, 25, who had glued her hand to the road, said: "Before we started doing this no-one was talking about insulation, nobody cared about it, nobody knew it was an issue, now it's been in the newspapers and it's been all over people's dinner table conversations for the last six weeks.
"They say 'we agree with your cause but not the tactics', but at the end of the day they only know about our cause because of our tactics."
A spokesperson for Manchester Airport said: "We are aware of protesters gathered on land close to Manchester Airport, which is being handled by Greater Manchester Police.
"There is no impact on our operations but those planning to travel to the airport should take account of this ahead of their journey.
"Anyone with further enquiries should contact the police or Highways England directly."
Mayor of Greater Manchester Andy Burnham criticised the protesters in a Tweet, saying: "I can't see how this type of protest does anything other than alienate people from the climate cause.
"Have been reassured @gmpolice are working to get things moving as soon as possible."
The protesters in Birmingham caused traffic chaos in the city centre but they had allowed emergency vehicles to pass through.
A series of protests by the group involving traffic obstruction began in September, with protesters blockading the M25 along with other motorways.
A spokeswoman for Insulate Britain said there were currently no plans for any protests in Wales "at the current time".
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