London (AFP) – Global stock markets sank Wednesday and the dollar soared as investors fretted over recession fears and heightened Ukraine tensions. “With the prospect of a sharp economic slowdown, further pain for households and businesses, and investor sentiment on its knees, alas equities markets continue their descent,” said AJ Bell investment director Russ Mould. The haven dollar held at multi-year highs against rival currencies, with the euro plumbing a new 20-year low at $0.9536. The British pound slumped 1.7 percent against the greenback — despite the Bank of England snapping up UK gov…