Topic: Achim Steiner - CSMonitor.com

Thailand to end ivory trade?

Thailand's prime minister pledges to put an end to her nation's ivory trade. But she sets no timeline for ending the ivory trade, which is helping boost illegal poaching in Africa.

Change Agent Cut food waste to help feed the world, experts say

Mercury emissions on the rise; UN calls for treaty

Rio+20: megacities strive to survive – and thrive (+video)

Ahead of Rio +20 summit, UN sounds environmental alarm (+video)

The Monitor's View World eco-summit in Rio must come down to earth

Comprehensive climate deal 'beyond our reach': UN chief

World Water Day: Dirty water kills more people than violence, says UN

Earth Talk: Peat bogs – ecosystems that store C02

UN-sponsored meeting bans nine chemicals – but not DDT

UN reports 'green energy gold rush'

Water shortages affect food, transit, security