1. Marc Gunther, @MarcGunther
Leading sustainability columnist for Guardian Sustainable Business.
2. Jennifer Boynton, @JenBoynton
Editor-in-chief of Triple Pundit, she shares a wealth of sustainability news.
3. Adam Elman, @adamelman
Global head of Plan A for Marks & Spencer, he offers a constant stream of sustainability news.
4. Sustainable Brands, @SustainBrands
A great follow for insights on how to market sustainability.
5. Bill McKibben, @billmckibben
A climate activist, he shares everything you ever wanted to know about climate change but were afraid to ask.
6. Context, @Context_Group
Context’s twitter is a great way to keep up with their content, which offers thoughtful, credible pieces on serious sustainability issues.
7. Joel Makower, @makower
He’s the founder of GreenBiz and the father of sustainability journalism.
8. Laura Clise, @lauraclise
She’s the head of sustainability at Plum Creek, a great LGBT ally and a powerhouse Twitter networker.
9. Sherrilyn Ifill, @Sifill_LDF
As president of the NAACP Legal Defense Fund, she’s a go-to on issues of race.
10. Kumi Naidoo, @kuminaidoo
Executive Director of Greenpeace International — keeps me up-to-date on what activists are thinking.
11. Robert Antoshak, @RAntoshak
His account offers a great continuous feed of apparel industry news.
12. Anne Marie Slaughter, @SlaughterAM
The CEO of NewAmerica, she’s great on foreign affairs, policy, and women’s issues.
13. Lollly Daskal, @LollyDaskal
She shares the most practical advice on leadership.
**This story first appeared on Unzipped – a blog by Levis Strauss & Co.