As the nation responsible for the biggest share of greenhouse gases in the atmosphere today, the United States has pledged more money and made new commitments to fight climate change. Nicolette Bartlett, the global director of climate change at environment advisory group CDP, tells us how carbon trading is helping in the transition.

One phenomenon of the pandemic has been booming house prices. New Zealand is working on ways to control the scourge. Monte Cecilia Housing Trust's Bernie Smith talks us through the challenge.

And finally, we look at why gold has become one of Iraq’s top exports despite there being no gold deposits in the country.

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