Global warming is one of the most pressing global environmental issues facing the world today. It has been caused by the increase in the average temperature of the earth's atmosphere due to the emission of greenhouse gases. These gases trap the heat from the sun, thus increasing the temperature of the earth's atmosphere. Scientists predict that the temperature of the planet could rise more than two degrees Celsius by the end of the century if carbon dioxide emissions are not curbed soon. Global warming has already caused many changes around the world, from more extreme weather such as floods and droughts, to melting ice caps and rising sea levels. It has also led to a rise in global temperatures, changes in the distribution of species, changes in ecosystems, and increased ocean acidification. In addition, global warming affects the human population in many ways, such as increased risk to health, water resources, agricultural productivity, and economic systems. Admittedly, global warming is a serious problem, and one that requires urgent attention. Thankfully, there are a number of steps that can be taken to address this issue. These include transitioning to renewable sources of energy, reducing greenhouse gas emissions, and increasing public awareness. Additionally, governments across the world must work together to create an international agreement to tackle climate change. If we are to avoid the worst effects of global warming, then it is essential that individuals, communities, businesses, and governments take action now to reduce emissions and transition to a low-carbon, sustainable future.