Nudge

In a randomized clinical trial of nearly 5,000 emergency patients, researchers found that the proportion of patients willing to take a rapid HIV test increased from 38 percent to 66 percent when the test was presented as a medical service…

China on Saturday promised incremental steps to tackle climate change over the next decade, but signaled that it would not disclose all of its plans before taking the next steps from its main global rival, the United States.At an online…