Setting clear, long term, and legally binding frameworks to mainstream and encourage green growth are also key to attracting private investment. It also signed the Convention on International Trade in Endangered Species in 1997. On commitments related to climate change, Cambodia ratified the Kyoto Protocol on greenhouse gas emissions in 2002. More recently, the country submitted a Nationally Determined Contribution (NDC) to the UNFCCC in 2015 and signed the Paris Agreement in 2016.