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

    FBI data shows dramatic rise in school shootings across U.S.

    02:17
  • Parkland shooting survivor: Teachers ‘went to school to be educators,’ not law enforcement

    04:06
  • Starbucks sued over union retaliation claims

    09:30
  • Americans react to the Robb Elementary School massacre

    02:53
  • World leaders consider boycotting Summit of the Americas

    03:03
  • Book recommendations with NBC News’ legal analyst Danny Cevallos

    03:37
  • Former editor-in-chief of InStyle Laura Brown shares advice on changing careers

    03:38
  • Fmr. Secretary of State Kissinger suggests Ukraine cede territory to Russia

    03:21
  • British government releases critical report on Downing Street parties

    03:07
  • Biden to sign executive order on police reform two years after George Floyd’s death

    04:26
  • Ukraine says war entering most ‘active phase’ in Donbas region

    03:52
  • Investigation into deadly Texas school shooting underway

    04:36
  • Breaking down Georgia’s primary governor, Senate election results

    04:13
  • Texas school shooting reignites lawmakers’ debate over gun control

    05:38
  • Parts of India, Brazil and South Africa ravaged by wave of recent flooding

    01:50
  • Georgia Gov. Brian Kemp beats Trump-backed challenge by wide margin in GOP primary

    02:54
  • Spouse of Robb Elementary School worker brought wife flowers before hearing gunshots

    00:40
  • Uvalde superintendent cancels classes, activities for rest of year following elementary school shooting

    01:17
  • Authorities identify 18-year-old suspect in Texas elementary school shooting

    07:10
  • Putin’s War

    24:15

How climate change could destroy a crucial U.S. water source in the next 25 years

02:27

A new study shows that a major source of water in the western U.S. could dry up within the next 25 years if efforts to combat climate change are not stepped up drastically. NBC News science reporter Denise Chow explains how losing this water source could impact western states and what measures can be taken to keep the water flowing.