World leaders at the G20 summit have agreed to a series of measures aimed at boosting the global economy by more than $ 2 trillion . The plans , if they 're fully put into action , would lift the combined gross domestic product of G20 nations by an extra 2.1 % by 2018 , a communique from the summit said on Sunday . `` We can do more for our people and the wider world when we work together , '' Australian Prime Minister Tony Abbott , who hosted the summit , told journalists . The G20 is a group of the biggest advanced and emerging economies on the planet , accounting for two-thirds of the world 's population , 85 % of global gross domestic product . 'Millions of jobs ' The action plan from the summit , held this weekend in the city of Brisbane , contains more than 800 separate reform measures , Abbott said . The strategies include `` major investment initiatives , including actions to strengthen public investment and improve our domestic investment and financing climate , '' according to the communique . But international leaders agreeing to do something is one thing , actually putting it into action is another . `` We will do everything we humanly can to make them happen , '' Abbott said of the measures , which are specific to each member country . The International Monetary Fund and the Organization for Economic Co-operation and Development `` will be regularly reviewing our progress to achieving these measures to keep us accountable , '' he said . If all of it is successfully put into practice , the overall package will `` add more than $ 2 trillion to the global economy and create millions of jobs , '' the communique said . Climate change commitment . The statement also voiced support for `` strong and effective action to address climate change . '' G20 members said they agreed to work to successfully adopt a measure `` with legal force '' under the United Nations Framework Convention on Climate Change . The deadline is a major conference in Paris next year . That commitment follows the historic climate change deal announced last week by the United States and China , the world 's two largest emitters of greenhouse gases . `` There was a lot of pressure here in Brisbane that the G20 follow through , continue the momentum about climate change , '' said CNN 's Andrew Stevens . Under the U.S.-China agreement , the United States would cut its 2005 level of carbon emissions by 26-28 % before the year 2025 . China would peak its carbon emissions by 2030 and will also aim to get 20 % of its energy from zero-carbon emission sources by the same year . Obama : Success . President Obama who spoke to journalists after Abbott , commended the summit for its work but also took the opportunity to wrap up his entire trip to Asia with a few words of self-praise . `` From trade to climate change to the fight against Ebola , this was a strong week for American leadership , the result will be more jobs for the American people , historic steps towards a cleaner and healthier planet , and progress towards saving lives not just in West Africa but eventually in other places , '' he said . `` If you ask me I 'd say that 's a pretty good week . '' The trip contrasts with the political reality Obama faces in Washington , after his party suffered heavily in the midterm elections this month . Obama said of his Asian trip that he planned to `` build on that momentum '' after his return to Washington .
G20 : The proposed reforms would increase the combined GDP of G20 nations by 2.1 % . If fully implemented , the raft of policies will create millions of jobs , a communique says . Australian Prime Minister : ` ` We will do everything we humanly can to make them happen '' The nations also pledged to work to pass a measure with ` ` legal force '' on climate change .