I am giving you fair warning now that there are plans for major disruptions planned for Heathrow Airport in mid August, if you don't need to be there - DON'T
Thousands of green campaigners are planning to cause massive disruption at Heathrow airport.
"Eco-warriors" say they will set up a Greenham Common-style protest camp near the perimeter fence.
They intend to use it as a base to disrupt flights at the peak of the tourist season in an attempt to focus attention on climate change and global warming.
At a secret meeting in London at the weekend, protesters said they would occupy land around Heathrow between 14 to 21 August.
From there they will threaten the boundary and attempt to cause havoc inside the airport - or at least tie up hundreds of police.
Protesters at the Camp for Climate Action say they are planning:
To infiltrate the terminal buildings by posing as passengers and then cause chaos once inside.
Blockade roads and railways into Heathrow.
Occupy airline offices and take "direct action" against freight companies and firms that supply food for passengers.
Up to three million passengers could be affected. One anarchist said: "There will be thousands of us there and they will need thousands of police to stop us.
"The police will be in a no-win situation. If they allow us to reach our targets at the airport there will be massive disruption and if they try to stop us, there will also be massive disruption."
The activists, who include veterans of May Day riots and the Reclaim the Streets campaign, were behind a "climate camp" at the Drax power station in North Yorkshire last summer.
More than 650 people took part in that protest, leading to 41 arrests and an estimated policing bill of £4 million.
Details of the Heathrow action will be circulated to anarchist groups at next month's G8 meeting in Germany.
Campaign organisers are understood to be trying to rent land near the airport for the camp from residents who are opposed to the Heathrow expansion plans.