America’s new top climate diplomat John Podesta and his equally fresh Chinese counterpart are meeting in Washington this week, marking the beginning of a more challenging era in US-China climate relations. POLITICO’s Zack Colman breaks down this new dynamics expected as the two climate envoys meet face to face. Plus, the Department of Energy is taking a major step toward giving federal regulators new authority to override states when they decide to delay or block construction of new power lines.   For more news on energy and the environment, subscribe to Power Switch, our free evening newsletter: https://www.politico.com/power-switch And for even deeper coverage and analysis, read our Morning Energy newsletter by subscribing to POLITICO Pro: https://subscriber.politicopro.com/newsletter-archive/morning-energy   Zack Colman covers climate change for POLITICO.  Josh Siegel is an energy reporter for POLITICO.  Nirmal Mulaikal is a POLITICO audio host-producer.  Annie Rees is a senior audio producer-host at POLITICO.  Gloria Gonzalez is the deputy energy editor for POLITICO.  Matt Daily is the energy editor for POLITICO.