The Download: lab-grown meat's climate impact, and Congress' AI plans

Soon, the menu in your favorite burger joint could include not only options made with meat, mushrooms, and black beans but also patties packed with lab-grown animal cells. Not only did the US just approve the sale of cultivated meat for the first time, but the industry is in the process of raising billions of dollars to bring its products to restaurants and grocery stores. In theory, that should be a big win for the climate--greenhouse-gas emissions from the animals we eat account for nearly 15% of the global total. But whether cultivated meat really is better for the environment is still not entirely clear. Two weeks ago, Senate majority leader Chuck Schumer announced his grand strategy for AI policymaking at a speech in Washington, DC, ushering in what might be a new era for US tech policy.