The term "climate crisis" refers to a situation in which the Earth's climate is undergoing significant and potentially dangerous changes due to human activities such as burning fossil fuels, deforestation, and industrial processes. This can result in rising global temperatures, extreme weather events, sea level rise, ocean acidification, and other environmental disruptions that pose a threat to ecosystems, economies, and human health. The phrase "climate crisis" is often used to describe the urgent need for action by governments, businesses, and individuals to reduce greenhouse gas emissions and mitigate the impact of climate change.