Global oceans have warmed since 1970, absorbing 90% of excess heat. Ocean surface pH has fallen from 8.15 to 8.05 between 1950-2020. Warmer water cannot contain same oxygen as colder water. Ocean acidification threatens marine calcifying organisms
Fossil fuel burning accounts for 89% of global CO2 emissions. Land use change, especially deforestation, contributes 21% of total emissions. Agriculture, especially livestock, is the largest methane source. Energy sector produces around 73% of global emissions
Global warming is a gradual increase in earth's temperature due to greenhouse gases. Human activities like deforestation and vehicle emissions contribute significantly. Industrial development and agriculture release greenhouse gases into atmosphere. CFCs from air conditioners destroy ozone layer, increasing temperature
Fossil fuels account for over 75% of global greenhouse gas emissions. Power generation from fossil fuels produces significant emissions. Manufacturing industry releases gases from fossil fuel-powered processes. Deforestation causes emissions through carbon dioxide release. Transportation accounts for nearly one quarter of global CO2 emissions
Greenhouse gases trap infrared radiation, contributing to Earth's greenhouse effect. Carbon dioxide, methane, and water vapour are the most important greenhouse gases. Greenhouse gases significantly affect Earth's energy budget despite being small
Global warming is the rapid increase in Earth's temperature over the past century. Human activities have significantly increased greenhouse gas concentrations since 1750. Global temperatures have risen 0.6-0.9°C between 1906 and 2005