Hi, I got a reply back from Dr. Nordhaus today: "The answer is that these are included conceptually in serious studies. The problem is that measurement has pr

Hi, I got a reply back from Dr. Nordhaus today: "The answer is that these are included conceptually in serious studies. The problem is that measurement has proven extremely difficult, so it is hard to judge whether the actual magnitudes are correct. WN" I think it makes the case that economists do not consider ecological damage to be cost zero. However, it is hard to assign a hard objective value to it.