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  • Man claiming to be Bitcoin creator wins civil case over his cryptocurrency fortune

    00:12
  • Biden warns Putin of ‘very real costs’ if Russia takes military action in Ukraine

    04:39
  • 13-year-old killed, multiple injured in Los Angeles shooting

    00:15
  • Better.com under scrutiny after 900 workers laid off in single video call

    01:55
  • Biden, Putin hold diplomatic virtual conversation as Ukraine tensions mount

    03:17
  • Study suggests Black social media influencers earn less than white counterparts

    03:29
  • Violent clashes erupt in Europe amid renewed Covid restrictions

    01:49
  • Department of Justice sues Texas over GOP-drawn voting maps

    02:52
  • Brene Brown shares insights from new project

    09:31
  • New poll finds only 2% of U.S. Hispanics use term 'Latinx'

    06:43
  • Dancing Grannies make inspiring parade return

    02:47
  • Venezuelans struggle to afford food as hunger increases across Americas

    03:27
  • Second alleged victim takes stand in Maxwell trial

    02:47
  • Former Better.com employee speaks out after company fired 900 over Zoom call 

    03:16
  • Vaccine experts debate strategy of using current boosters against omicron

    02:55
  • Kentucky Derby winning horse dies after workout routine

    00:18
  • Jussie Smollett takes stand in his criminal trial

    03:34
  • DOJ lawsuit claims new Texas maps discriminate against minority voters

    02:41
  • How Apple's 'self-service repair' program sheds light on right to repair laws

    03:45
  • Burnout: Resilience and recovery

    30:55

How cryptocurrency mining impacts the environment

02:13

NBC News’ Joshua Johnson explains how cryptocurrencies are not just impacting the global financial markets but are also negatively affecting the environment through the amount of electricity used to mine digital currencies.