<p style="text-align:start;" size="0" _root="undefined" __ownerid="undefined" __hash="undefined" __altered="false"><span style="color:#000000">Billionaire Microsoft Cofounder Bill Gates on Thursday pledged $1.5 billion for joint projects with the federal government to help fight climate change as part of proposed initiatives in the Senate's $1.2 trillion infrastructure bill, but suggested his funds could go to other countries if the bill, which still faces a very uncertain fate in Congress, doesn't end up getting passed.</span></p><h3 style="text-align:start;text-indent:2em;"></h3>