Climate change


IEA @ COP24

The twenty-fourth session of the Conference of the Parties (COP24), convened under the Presidency of Poland, will be held in Katowice, Poland from 2-14 December 2018.

As the global energy authority, the IEA promotes climate action through cutting-edge analysis, data, expertise and policy advice that supports countries, companies and other key stakeholders. IEA analysis is key to tracking progress of global energy transitions towards Paris Agreement goals - under the Talanoa Dialogue and beyond - and helping drive further ambition of Nationally Determined Contributions.

Learn more

Promoting sustainable development and combating climate change have become integral aspects of energy planning, analysis and policy making. Because energy accounts for two-thirds of total greenhouse gas emissions and 80% of CO2, any effort to reduce emissions and mitigate climate change must include the energy sector.

Global energy-related CO2 emissions grew by 1.4% in 2017, reaching a historic high of 32.5 gigatonnes (Gt), a resumption of growth after three years of global emissions remaining flat. The increase in CO2 emissions, however, was not universal. While most major economies saw a rise, some others experienced declines, including the United States, United Kingdom, Mexico and Japan. The biggest decline came from the United States, mainly because of higher deployment of renewables.

	CO2 Emissions	Yearly Increase 2000-2016	Increase 2016-2017
2000	23.01		
2001	23.01	0.34	
2002	23.35	0.4	
2003	23.75	1.05	
2004	24.8	1.17	
2005	25.97	0.93	
2006	26.9	0.85	
2007	27.75	1.1	
2008	28.85	0.16	
2009	28.59	-0.42	
2010	28.59	1.67	
2011	30.26	0.88	
2012	31.14	0.25	
2013	31.39	0.52	
2014	31.91	0.2	
2015	32.11	-0.03	
2016	32.08	-0.01	
2017	32.07		0.46
{
	"title": {
    	"text": "Global energy-related CO2 emissions"
	},
	"tooltip": {
    	"pointFormat": "{point.total:.2f} Gt CO2"
	},
	"chart": {
		"type": "column"
	},
	"xAxis": {
		"tickInterval" : 1
	},
	"plotOptions": {
		"series": {
			"stacking": "normal",
			"marker": {
				"enabled": false
			}
		}
	},
	"yAxis": {
		"title": {
            "useHTML" : true,
			"text": "Gt CO2"
		},
		"reversedStacks" : false
	},
    "series": [{},{},{"colorIndex":7}]
  }

Source: Global Energy & CO2 Status Report 2017

More CO2 statistics >

Meeting the long-term climate objectives of the Paris Agreement requires urgently tackling energy-related greenhouse gas emissions. Individually and collectively, countries need to define and implement policies for accelerated clean energy transitions that are enabled by real-world SOLUTIONS, supported by ANALYSIS, and built on DATA. The IEA works with countries across the globe to implement climate-resilient decarbonisation pathways.

Our work on Climate change