AAP: Climate Change Minister Penny Wong has poured cold water on suggestions Australia could move towards nuclear power. The government’s own nuclear body, the Australian Nuclear Science and Technology Organisation (ANSTO), says it’s time to give "active consideration" to nuclear power, which it says is safe, reliable and would become more cost-effective. Mining giant Rio Tinto has talked up nuclear power and called on the government to make a decision about it by 2020. But …