Eric Hittinger, a researcher on grid-scale batteries and carbon emissions, discusses the current state of grid-scale batteries and their impact on carbon emissions. He highlights how most batteries on today's grid actually increase emissions and introduces Tierra Climate, a startup aiming to incentivize emission-reducing behavior in batteries through carbon offsets. The podcast explores the challenges faced by grid-scale batteries in reducing emissions, the lack of financial incentives for battery investments, and the differences between avoidance and removal offsets. It also discusses the price points for nature-based offsets and batteries, and the importance of carbon offsets in achieving sustainability goals.