Casting doubt on the determination that greenhouse gas emissions endanger public health and welfare, he said, ‘we’re not accepting all of the narrative of the left without any question or pushback.’By Gabriel Matias CastilhoWASHINGTON—Addressing a conference of scientists and other experts skeptical of climate change, Environmental Protection Agency Administrator Lee Zeldin on Wednesday celebrated his decision to repeal what is known as the ‘endangerment finding,’ which provided the backbone for federal regulation of greenhouse gas emissions.