Air pollution in London has breached the maximum levels allowed under European law 36 times already this year.
Under the law, the permitted level should not be exceeded more than 35 days a year.
Friends of the Earth said it would be urging the European Commission to prosecute the government.
New York property magnate Donald Trump has unveiled an alternative project to the Freedom Tower in Lower Manhattan.
Trump described Daniel Libeskind's design for the tower to replace the World Trade Center as 'the worst pile of crap architecture I've ever seen in my life.'