1 year in, Biden's climate record is a mix of progress and inconsistency

One year into President Biden's tenure, climate advocates credit him for setting a bold agenda -- but others have been frustrated by inconsistencies and broken pledges.

President Joe Biden arrived in office with lofty expectations from environmentalists who hoped that his ambitious campaign rhetoric would translate into an aggressive climate platform to match.

One year into his tenure, advocates credit Biden for setting an historically bold agenda, taking important steps to undo Trump-era rollbacks, and enacting a whole-of-government approach to combat climate change.

"President Biden is delivering," said Margo Oge, the former director of the EPA's Office of Transportation and Air Quality, and current chair of the International Council on Clean Transportation.

But for others, the honeymoon has ended. Inconsistencies and broken pledges have frustrated some, and the fate of Biden's ambitious Build Back Better proposal -- which would commit $550 billion toward addressing climate change -- remains in congressional purgatory.