Ummm... BL... you do have aircraft for your small imaginary carriers don't you?
Why don't you answer that question considering that you're an expert on the great Royal Navy?
As for Britain's wonderful new carriers being "small": they don't look that small to be. They're almost the same size as the USS Roosevelt.
With no trees left, where do you think the wood came from?
It's normal for an empire to take the resources of the land it controls. One of the reasons why the Romans conquered modern England and Wales and turned it into a Roman province they called Britannia was because they wanted our tin, gold, silver, grain and cattle.
Britain was no different.
Also, it wasn't the case that there were no trees left. Britain has plenty of trees.
By the eighteenth century England had not exhausted its supply of suitable domestic hardwood timber but – like the Netherlands – it imported softwood supplies. While every nation has trees and wood, ship timber is a far more limited product. The ideal woods were oak, Scots pine – but not spruce, and other large trees. Especially difficult to find were trees suitable to be masts, a crucial requirement for any sailing ship, and one that often had to be replaced after storms or wear. As suitable trees take decades to grow, in densely populated nations like England any given square metre of land could, usually, be far more valuably employed by producing foodstuffs rather than timber.
British timber trade - Wikipedia, the free encyclopedia
In 1806 war broke out between France and England. France had her own forests. England traditionally bought timber from the Baltic and from her colonies in New England. The American Revolution disrupted the supply of timber from New England while Napoleon Bonaparte ordered a blockade of the Baltic.
The Royal Navy found a ready supply of masts in the forests in what remained of their colonies in British North America. Navy masts were tall; between 75 and 100 feet! Two feet around at the base, and octagonal.
From this early demand by the Royal Navy, there began an enterprise which dwarfed any other in North America at the time
Origins of the Canadian Lumber Trade
And the timber the Royal Navy ended up getting from what is now Canada was crap, especially compared to the timber it got from the Baltic. British mlitary sources disliked Canadian timber. The longer voyage lowered its quality and it was far more susceptible to dry rot. A frigate made of North American wood tended to have only half the life span of a Baltic ship.