Environmental Leader: Just recently, European Union countries agreed to maintain their targets and schedule to tackle climate change. But once again, Europe`s leadership in tackling climate change may be weakened by the credit crisis as Italy, Poland, Latvia and others at the EU meeting last week threatened to veto Europe`s carbon plan unless they were softened, New York Times reports. At a recent meeting in Luxembourg, Stefania Prestigiacomo, the Italian environment minister said her country had “many …