𝐖𝐡𝐚𝐭 𝐚𝐫𝐞 𝐭𝐡𝐞 𝐬𝐨𝐮𝐫𝐜𝐞𝐬 𝐨𝐟 𝐞𝐦𝐢𝐬𝐬𝐢𝐨𝐧𝐬? Greenhouse gases, like carbon dioxide, methane, nitrous oxide and fluorinated gases, are all heating up the planet. So what are the main human activities that cause them? The biggest share of these planet-warming gasses is spewed for energy, as coal, oil and gas still provide a lot of the world's needs. Energy for industries like steel and iron, electricity to turn the lights on in homes and buildings, and gas to fuel up cars, ships and planes, all pump carbon dioxide into the air if they're not coming from renewable sources. Agricultural practices, like deforestation and livestock, make up almost a fifth of the world's emissions. Waste such as landfill, leaks from oil and gas extraction and processes like cement-making which makes carbon dioxide as a byproduct also emit greenhouse gasses. https://phys.org/news/2022-10-climate-sources-emissions.html