lämpötilanousun

Lämpötilanousu, often translated as temperature increase or warming, refers to the observed and projected rise in Earth's average surface temperature. This phenomenon is primarily attributed to the increased concentration of greenhouse gases in the atmosphere, which trap heat and lead to a gradual warming of the planet. The most significant greenhouse gas responsible is carbon dioxide, largely emitted from the burning of fossil fuels for energy, transportation, and industrial processes. Other contributing factors include methane and nitrous oxide, released from agricultural activities, deforestation, and certain industrial operations.

The consequences of lämpötilanousu are far-reaching and include climate change. Scientists have documented a range of impacts, such as rising sea levels due to melting glaciers and ice sheets, more frequent and intense heatwaves, altered precipitation patterns leading to droughts and floods, and disruptions to ecosystems and biodiversity. The scientific consensus, as represented by bodies like the Intergovernmental Panel on Climate Change (IPCC), is that human activities are the dominant cause of the observed warming since the mid-20th century. Addressing lämpötilanousu involves efforts to reduce greenhouse gas emissions through transitioning to renewable energy sources, improving energy efficiency, and implementing sustainable land-use practices, as well as adapting to the unavoidable impacts of a changing climate.