A sea change on climate change. As one of his first actions, President Biden is doing a 180-degree turn from his predecessors policy and vowing to confront the issue head on.White House correspondent Yamiche Alcindor begins our coverage.A climate crisis and a call for dramatic action. Today, President Biden underscored his sweeping break from former President Trump, signing a new batch of executive orders.Our plans are ambitious, but we are America. We're bold. We're unwavering in the pursuit of jobs and innovation, science and discovery. We can do this.President Biden had already moved to rejoin the Paris climate agreement, the same accord that President Trump withdrew from.The new executive actions include pausing and reviewing new oil and gas leases on federal public lands and water,addressing environmental injustices faced by disadvantaged communities, and building jobs focused on clean energy.During the presidential campaign, candidate Biden advocated a $2 trillion effort to reduce global warming.Today, his presidential envoy for climate, former Secretary of State John Kerry, doubled down on that goal.It's a lot of money, but you know what? It costs a lot more if you don't do the things we need to do.Workers are going to see that, with the efforts of the Biden administration, they're going to have a much better set of choices and, frankly, it will create more jobs.Most Republicans have pushed back on climate change efforts, saying they cost too much. They argue that clean energy means slashing jobs.