Politics no excuse to block go-green efforts

Most evenings last month, I wore two sweaters while working at home on the computer. Before bed, I sometimes used the air conditioner to warm up the bedroom before getting into bed, which was covered with two quilts.

The chill lingered until the end of the month. Meteorologists said it was Beijing's coldest April in nearly half a century.

Severe winter weather in the northern hemisphere and a chilly spring in many parts of the world have made some people skeptical of "global warming". Worse, it seems to have chilled the enthusiasm of some politicians and heads of government, who are dragging their feet on climate legislation.