London Array will not go ahead with the second phase of an offshore wind farm, partly because of the time it would take to assess the impact on birds. The consortium behind the Thames Estuary development said there were "technical challenges and environmental uncertainties" surrounding the site.
London Array's wind farm is already the biggest of its kind in the world.
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Police have stepped up patrols after a woman in her 40s was "dragged to the ground" in a park in east London.
Families living near Heathrow say they are supporting a group of activists facing jail for chaining themselves to the airport's runway.
Police were called to break up a "large fight" which involved a baseball bat, a man dislocating his shoulder and three arrests.