Which government sustainability initiative was the first to implement a nationwide carbon pricing mechanism that rebates revenue directly back to citizens as 'climate dividends'?

Test your knowledge about major government sustainability initiatives! As climate change concerns grow, governments worldwide have implemented various programs to reduce carbon footprints and promote environmental sustainability. These initiatives often involve complex policy decisions, public-private partnerships, and significant investment. How well do you understand the landmark sustainability programs that have shaped environmental policy in recent years?

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Canada's Federal Carbon Pricing Backstop (2019)
Australia's Carbon Pricing Mechanism (2012-2014)
Sweden's Carbon Tax System (1991)
New Zealand's Emissions Trading Scheme (2008)