If we are talking about gender -based abortions here in the UK, I think the evidence is still equivocal. It certainly happens elsewhere in the world, most especially in China where the stats are massively skewed toward male babies, but the Independents analysis, whilst indicative, is not proof-positive - as they themselves point out in the article, there could be other reasons why they are seeing the figures they are.
But I think Slaney has it about right - couples wishing for a male baby may well avail themselves of new technology DNA testing, and then apply for an abortion on other grounds.
As to stopping it - I would agree that the practice should be firmly discouraged, but the actual practicality requires some thought.
The recent case where the CPS decided not to prosecute 2 doctors implicated in gender-selective abortions illustrates the difficulty.
http://www.independent.co.uk/life-style/health-and-families/health-news/decision-not-to-charge-two-doctors-over-genderbased-abortions-was-right-dpp-keir-starmer-says-8864400.html