Because, doncha know, diverting the stream will cause the UK to "freeze over." Lowering the temp of the revolving current will cause the 'far end' recipients of the stream to get COLD WATER!
Get it? The envirowhackos are right! LOL....
Your speculation of opposition from luddites is credible, so are you saying that you oppose the project because somebody else somewhere might oppose the project too? You are making "Chicken Little" look brave. Next, I'll hear that the project is not viable because of its location in the "Bermuda Triangle."