Worldwatch has studied the effects of wealth on people's health and happiness.
世界观察研究所研究财富对人们健康和幸福的影响。
英语百科
Worldwatch Institute
（重定向自Worldwatch）
The Worldwatch Institute is a globally focused environmental research organization based in Washington, D.C. Worldwatch was named as one of the top ten sustainable development research organizations by Globescan Survey of Sustainability Experts.