Hmérsékletnövekedés

Hmérsékletnövekedés refers to the observed and projected increase in global average temperatures. This phenomenon is primarily driven by the enhanced greenhouse effect, where increased concentrations of greenhouse gases in the Earth's atmosphere trap more heat. The main greenhouse gases implicated are carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), largely released through human activities such as the burning of fossil fuels, deforestation, and industrial processes.

Scientific evidence, including temperature records, ice core data, and climate models, consistently shows a warming trend over the past century, with the most rapid warming occurring in recent decades. This increase in temperature has significant implications for the planet's climate system. Consequences include rising sea levels due to thermal expansion of water and melting glaciers and ice sheets, more frequent and intense heatwaves, altered precipitation patterns leading to both droughts and floods, and impacts on ecosystems and biodiversity.

The scientific consensus is that human activities are the dominant cause of the observed hmérsékletnövekedés. Addressing this challenge requires a multifaceted approach, including 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. International cooperation and policy interventions are crucial for effectively mitigating and adapting to hmérsékletnövekedés.