The Guardian has unveiled the 20 fossil fuel companies whose relentless exploitation of the world's oil, gas, and coal reserves can be directly linked to over one-third of all greenhouse gas emissions in the modern era. This data, provided by the Climate Accountability Institute in the US, reveals how these state-owned and multinational firms are driving the climate emergency, even though they are aware of the industry's devastating impact on the planet. The top 20 companies have contributed to 35% of all energy-related carbon dioxide and methane worldwide, totaling 480 billion tons of carbon dioxide equivalent since 1965. The list includes well-known names such as Chevron, Exxon, BP, and Shell, as well as state-owned companies like Saudi Aramco and Gazprom. Chevron, Exxon, BP, and Shell alone are behind more than 10% of the world's carbon emissions since 1965. These companies have continued to expand their operations, despite knowing the environmental impact of fossil ...