An initiative to lease the seabed around Scotland's coasts, called ScotWind, gave initial backing to 17 new wind farms - which has now been expanded to 20.

Between them, they're expected to bring in about 30bn of investment over the next decade.

Currently onshore projects produce about four times as much power as offshore ones, but it's the latter which are expected to grow most rapidly in the coming decades.

The Scottish government is currently consulting on plans to increase offshore generation capacity by 40GW by 2040, enough to power 45 million homes.

The growing renewables sector already supports about 42,000 jobs in Scotland while oil and gas supports 84,000, according to the their respective industry bodies.

But while the renewables jobs are going up, the workforce built on fossil fuels has long been falling.

The North Sea oil boom peaked in 1999 which means output has been in decline for a quarter of a century.

The president has also expressed great concern for the impact of wind farms on birds which, he says, they are killing.

With the prime minister by his side, he told a news conference at his Turnberry golf course that shooting a bald eagle in the US could result in five years' imprisonment but the windfarms are "killing hundreds."

He added: "They kill all your birds."

While there is limited solid research into the impact of wind turbines on birds, a significant two-year study was carried out on the very site in Aberdeenshire which Donald Trump tried to block.

Cameras were attached to the towers which detected and tracked birds passing through the site and, according to the developers, it didn't record a single bird strike.