Associated Press: Sen. John Kerry is heading to Poland Wednesday for a conference on climate change. Kerry, D-Mass., and Sen. Amy Klobuchar, D-Minn., are going as representatives of the Senate Environment and Public Works Committee. About 190 countries are meeting in Poznan, Poland, for the talks — which are part of the attempt to reach a new climate-change treaty in the Danish capital of Copenhagen next year. The talks go through Dec. 12. President-elect Barack Obama has asked the …