"Climate doom-ism," or a pessimistic outlook on the future of the planet, rivals climate denialism in holding up the fight against climate change, says activist Zahra Biabani. Illuminating how hope combats inaction, she takes us inside the world of eco-friendly content on TikTok -- and shows that we all have what it takes to make real change. Countdown is TED's global initiative to accelerate solutions to the climate crisis. The goal: to build a better future by cutting greenhouse gas emissions in half by 2030, in the race to a zero-carbon world. Get involved at countdown.ted.com/sign-up Learn more about #TEDCountdown: Twitter: twitter.com/TEDCountdown Instagram: www.instagram.com/tedcountdown Facebook: www.facebook.com/TED Website: countdown.ted.com Watch the full 2021 TED Countdown Global livestream here: youtu.be/SG_vqlb1pOQ If you love watching TED Talks like this one, become a TED Member to support our mission of spreading ideas: ted.com/membership Follow TED! Twitter: twitter.com/TEDTalks Instagram: www.instagram.com/ted/ Facebook: facebook.com/TED LinkedIn: www.linkedin.com/company/ted-conferences/ TikTok: www.tiktok.com/@tedtoks The TED Talks channel features talks, performances and original series from the world's leading thinkers and doers. Subscribe to our channel for videos on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. Visit TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more. Watch more: go.ted.com/zahrabiabani youtu.be/FdbJHeqQh00 TED's videos may be used for non-commercial purposes under a Creative Commons License, Attribution–Non Commercial–No Derivatives (or the CC BY – NC – ND 4.0 International) and in accordance with our TED Talks Usage Policy (www.ted.com/about/our-organization/our-policies-terms/ted-talks-usage-policy). For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), please submit a Media Request at media-requests.ted.com #TED #TEDTalks #EcoTok