Share the news of December 14 with friends and circle of friends with wechat scanning QR code < / P > < p > < p >, Elon Musk, chief executive of SpaceX, a space exploration technology company, said on his personal social media twitter on Monday local time that SpaceX would start planning to remove carbon dioxide from the atmosphere and use it as rocket fuel. < / P > < p > musk tweeted, "SpaceX is launching a program to remove carbon dioxide from the earth's atmosphere and use it as rocket fuel." He added: "if you are interested in this project, please join us." < p > he also said that the project "is also very important for exploring Mars" < p > on Monday, musk was just named the person of the year in 2021 by time magazine < p > it is reported that Falcon 9, the main carrier rocket of SpaceX, uses kerosene as fuel, which will emit carbon dioxide and other chemicals into the atmosphere < p > SpaceX did not immediately respond to requests for comment < p > carbon dioxide released by fossil fuel combustion is the main greenhouse gas causing the climate crisis. Previously, musk and musk Foundation sponsored the establishment of xprize carbon removal award, providing a total of US $100 million for carbon removal technology. (Chen Chen) < / P > < p >