In this humid, lush region where an important part of the world's breakfast is born, the evidence of climate change is — literally — a weak tea.
Growers in tropical Assam state, India's main tea growing region, say rising temperatures have led not only to a drop in production but to subtle, unwelcome changes in the flavor of their brews.
The area in northeastern India is the source of some of the finest black and British-style teas. Assam teas are notable for their heartiness, strength and body, and are often sold as "breakfast" teas.
"Earlier, we used to get a bright, strong cup. Now it's not so," said L.P. Chaliha, a professional tea taster.