No, global warming is not a hoax. The overwhelming consensus among scientists is that the Earth's climate is warming, primarily due to human activities, such as the burning of fossil fuels and deforestation, which release greenhouse gases into the atmosphere. These greenhouse gases, such as carbon dioxide (CO2), trap heat from the sun, leading to a gradual increase in global temperatures.
The scientific evidence supporting the reality of global warming is extensive and comes from multiple independent lines of research, including temperature records, ice core data, sea level rise measurements, and computer climate models. These sources of evidence consistently demonstrate that the Earth's climate is changing and that human activities are a significant driver of this change.
Numerous scientific organizations worldwide, including the Intergovernmental Panel on Climate Change (IPCC), the National Aeronautics and Space Administration (NASA), and the National Oceanic and Atmospheric Administration (NOAA), have extensively studied and affirmed the reality of global warming.
While there may be some disagreements or debates on specific aspects of climate science, the overall scientific consensus is clear: global warming is happening, and it poses significant risks to ecosystems, human societies, and the planet as a whole. Addressing the causes and impacts of global warming is a crucial challenge for humanity, requiring concerted efforts to mitigate greenhouse gas emissions, adapt to changes, and promote sustainable practices.