Global warming caused by catalytic converters?

Great news for shipping companies! Cargo vessels today are now able to take a short cut over the ‘top’ of Russia between Pacific and Atlantic. Not such a good day for Polar Bears having container ships driving through their patch. Could there be any further proof that Global Warming is here and gathering pace? Unfortunately Homo Sapiens (“Wise Man”) seems to do its best to make the situation worse in the name of ’emissions controls’. See THIS and more on our Green page