At COP26, when India made its bold promise to achieve net-zero carbon emissions by 2070, very few places captured the promise of this ambition as vividly as the Northeast. Nestled in the Himalayas and enriched by forests, rivers, and biodiversity, the eight Northeastern states of Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Tripura, and Sikkim …