* Sweden, Norway, Spain most in favor of gay union
* Opposition highest in Japan, Hungary
By Patricia Reaney
NEW YORK, June 18 (Reuters) - Most adults in developed countries favor gay marriage or some type of legal recognition for same-sex couples and think they should be able to adopt children, according to an international poll released on Tuesday.
With the U.S. Supreme Court poised to rule on gay marriage this month and France's recent decision to legalize same-sex unions, an Ipsos poll for Reuters showed that 52 percent of people in 16 nations favor full marriage equality for gays and 21 percent support legal recognition but not marriage. Read more »