A group of 29 states and local governments on Tuesday filed suit against the Trump administration's move to replace Obama-era climate rules for power plants with a more modest alternative.
Why it matters: The litigation, led by New York Attorney General Letitia James, sets the stage for a new federal court battle over the scope of regulators' authority and duty to regulate greenhouse gas emissions under the Clean Air Act.
A new peer-reviewed study finds substantial health benefits in Rust Belt states when utilities are required to supply escalating amounts of renewable power. The researchers modeled existing mandates and what happens if they're made more stringent.
Why it matters: The paper in Environmental Research Letters explores the regional effects of energy policies that reduce fine particulates — which cause cardiovascular ailments — in the air by displacing coal-fired power.
Saudi Aramco announced an agreement in principle to buy a 20% stake in the oil-to-chemicals business of India’s Reliance Industries. The deal values the unit at $75 billion, including debt.
Why it matters: It's one of the largest-ever foreign investments in India, per a Reliance statement, and comes on the same day that Saudi Aramco held its first-ever earnings call.
People often ask me how I decide what to cover in this noisy and disparate energy and climate change beat. My answer: I stay focused on the puzzle.
The big picture: I look at the various factors that go into reducing greenhouse gases in a world that depends upon the energy resources that emit them. That is a simple deduction of what is a complex dynamic. Like puzzle pieces, these numerous factors work in tandem, not in isolation.