Business & Economics
Emissions Trading
95%
Emission Reduction
85%
Investment Decision
67%
Experiment
47%
Program Trading
24%
CO2 Emission Reduction
22%
Sulfur Dioxide
21%
Trading Mechanism
21%
Purchase
20%
Investment Choice
20%
Experimental Economics
19%
Human Health
19%
Global Warming
17%
Abatement
17%
Ecosystem
16%
Incentives
16%
Credit
14%
Economists
14%
Health
10%
United States of America
6%
Earth & Environmental Sciences
emissions trading
100%
emission reduction
77%
decision
50%
purchase
34%
program
33%
experiment
31%
market
22%
ecosystem health
18%
allowance
17%
credit
17%
sulfur dioxide
15%
incentive
15%
new technology
14%
global warming
13%
human health
12%
Europe
10%
economics
9%