Indo-Asian News Service: The US Senate Thursday voted down a Republican-led effort to strip President Barack Obama of the ability to regulate greenhouse-gas emissions blamed for global warming. But the narrow 53-47 vote, which attracted the support of some prominent Democrats, sent a signal to Obama over how difficult it will be to get major climate and energy reforms through Congress. The Senate resolution would have overturned a so-called “endangerment finding” by the Environmental Protection Agency …