John Regan is a medium-size builder in the Washington DC area who has just completed a high-end condominium project in the upscale suburb of McLean, Virginia.
Estimated to be around the size of Texas, this contaminated area of ocean has by some estimates more plastic than food for marine life.
Every summer an extra area of ice six times the size of California has been disappearing.
It houses 5, 000 plants, covers an area the size of 10 tennis courts, and has taken more than two years to build.
BBC: NEWS | UK | England | Surrey | Queen opens ?7.7m RHS glasshouse
Agency experts believe the weed only appeared at Davidstow this summer but it has already occupied an area the size of a tennis court.
BBC: NEWS | UK | England | Cornwall | Battle to halt weed invasion
President George W Bush has banned fishing in an area the size of Spain in US-controlled waters of the central Pacific.
Falcon last year sought a license to explore for gas in a 7.4-million-acre area, about a third the size of Ireland, but has been hobbled by the moratorium.
Though covering an area little more than 1% the size of North America, it has about 8, 000 more species of plants.
In total, the African Union has just 7, 000 soldiers and police across an area the size of France.
The observatory has 24 telescopes and 1, 600 detectors covering an area about the size of Lancashire.
However Baker says given that urban areas have increased in size since the last estimate, it is probably fair to say the total area occupied by foxes has also changed.
The cap has an average thickness of one kilometre and covers an area 1.5 times the size of Texas.
The Countryside Council for Wales (CCW) has added its support to a project to sustain an area of African tropical forest the size of Wales.
With the support of the British government, UK Seabed Resources has secured a licence from the United Nations to explore an area of seabed twice the size of Wales and 4, 000m deep.
BBC: UK Seabed Resources joins deep-ocean mineral-mining rush
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