This article is a timeline of the most important events that deal with the involvement of climate change; from when the topic was first introduced up to the 21st century. The event that sparked the controversy of climate change was during the Industrial Revolution, where the use of coal, railroads, and land clearing sped up greenhouse gas emissions.
Almost forty percent of US citizens believe that climate change is not real. Since no one can come up with a valid idea to determine if it is real or not, legislative bodies cannot enforce enough strict laws to prevent actions that cause climate change.
The National Aeronautics and Space Administration, or NASA, has many different sections on evidence, causes, and prevention for the topic of climate change.
Leonardo DiCaprio is a well known American actor, film producer, and environmentalist. He has his own foundation dedicated to changing people's opinions about climate change. DiCaprio strives to protect biodiversity, enforce oceanic and forest conservation, as well as educating the world about climate change.
The 44th United States president, Barack Obama talks about his opinion on the topic of climate change. He argues that even if every country in the world could eliminate emissions, climate change will impact the future generations. He also says that the current struggles with climate change is making it difficult to produce enough food to everyone in the world.
Donald Trump, the current president of the United States has been credited by saying that he does not believe in climate change. On November 6th, 2012, four years before he was elected, Trump tweeted to his Twitter account, "The concept of global warming was created by and for the Chinese in order to make U.S. manufacturing non-competitive". Not only is this demeaning, but it is simply not true. Within this article, he also said that he does not support the scientific research and evidence that proves climate change is real, wants to undo the Paris Agreement, and wants to keep public lands in the control of the government. However, a positive thing was said was about clean water. The 45th US president thinks that clean water is one of the "most important issues we face as a nation for the next generation".