IE 11 is not supported. For an optimal experience visit our site on another browser.

Climate in Crisis: Lester Holt’s journey to Alaska

03:53

Lester Holt travels to Alaska – where he spent part of his childhood -- to get a personal perspective of a climate in crisis. Scientists are warning that rising temperatures are having a significant impact on the state – including melting glaciers – which contributes to rising sea levels and warming oceans.