Both are small islands. Both have ieland in their name. Iceland is further north and a bit higher in elevation and probably a bit colder but both have similar (not same) climate. They are both wet and green.
Hmm they don't. Iceland has glaciers, Ireland has none
They share the same general Oceanic climate but Iceland is in a separate subcategory of sub-polar oceanic. While the North Atlantic Current makes it warmer than it would otherwise be it is quite a bit cooler than Ireland
http://en.wikipedia.org/wiki/Iceland#Cli...
http://en.wikipedia.org/wiki/Climate_of_...
Iceland had forests over much of it's exposed land till the Viking arrived they used up most of this resource to build homes and ships and as firewood. They also introduced all the larger animals that live there now as before them the largest animal was the Arctic Fox.
Ireland's capitol Dublin is at around the same latitude as Berlin, While Iceland's capitol (which is in the southern part of the Island) is 400km further North than Oslo, Iceland's Northern edge touches the Arctic circle.
Kim is right, the Gulf Stream warms both of them.
Iceland is farther north, but also smaller, so that the effect of the Gulf Stream will be more pronounced because more of it is nearer to the ocean.
That said, there are lots of areas in Iceland that are permanently covered in snow.
There's much less of that, if any, in Ireland, so I suspect that on average, Ireland is warmer.
However, maybe, the sides of the island that are directly impacted by the Gulf Stream see similar water temperatures, and thus, similar land temperatures.
Two words. Gulf Stream.
