Carbon emissions have continued rising over the past 30 years since the Rio Earth summit took place

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1. 1992 The Rio Earth summit took place in Brazil

2. 2004 After years of stalemate, the Kyoto protocol is ratified in Buenos Aires

3. 2010 The Cancun accords formalised the national targets of all countries, up to 2020

4. 2015 The Paris agreement marked the first time countries had set a global limit on temperatures that all were pledged to meet

5. 2021 In Glasgow, countries agreed to limit global heating to 1.5C and phase out coal

2021 In Glasgow, countries agreed to limit global heating to 1.5C and phase out coal

2004 After years of stalemate, the Kyoto protocol is ratified in Buenos Aires

1992 The Rio Earth summit took place in Brazil

2015 The Paris agreement marked the first time countries had set a global limit on temperatures that all were pledged to meet

2010 The Cancun accords formalised the national targets of all countries, up to 2020