Among the 32 places surveyed, support for legal same-sex marriage is highest in Sweden, where 92% of adults favor it, and lowest in Nigeria, where only 2% back it.
A median of 53% in five Middle Eastern and North African countries also see Iran playing a more important role, but fewer say Israel, Saudi Arabia and Egypt have gained influence.
People around the world identify ISIS and climate change as leading international threats. Many also name cyberattacks from other countries and the condition of the global economy as major challenges.
A Pew Research Center spring 2015 survey found that Pakistanis were extremely critical of these terrorist organizations and supported government action to fight extremists.