Carbon Dioxide (CO2) is the primary greenhouse gas emitted by human activities, primarily due to the burning of fossil fuels such as coal, oil, and natural gas.

Electricity and Heat Production is the largest contributor to global greenhouse gas emissions, accounting for approximately 25% of total emissions.

Global Warming refers to the long-term increase in Earth's average surface temperature, primarily due to the accumulation of greenhouse gases in the atmosphere.

Hydropower is the most widely used renewable energy source, accounting for approximately 54% of global renewable electricity generation.

Energy Transition refers to the shift from fossil fuels to renewable energy sources, aiming to reduce greenhouse gas emissions and mitigate climate change.

The United States has the highest per capita carbon footprint, emitting approximately 16.2 metric tons of CO2 per person annually.

The primary objective of the Paris Agreement is to limit global warming to well below 2 degrees Celsius, preferably to 1.5 degrees Celsius, compared to pre-industrial levels.

The United Nations Framework Convention on Climate Change (UNFCCC) is the international organization responsible for coordinating global efforts to combat climate change.

Carbon Capture and Storage (CCS) refers to the process of capturing carbon dioxide from industrial sources and storing it underground or in geological formations.

Pumped Hydro Storage is the most widely used energy storage technology for grid-scale applications, utilizing reversible hydroelectric systems to store energy.

Energy Efficiency refers to the process of reducing energy consumption without compromising the level of service or output.

China has the largest installed capacity of solar photovoltaic (PV) systems, accounting for approximately 30% of the global total.

The primary objective of the Kyoto Protocol is to reduce greenhouse gas emissions by setting binding targets for industrialized countries.

China has the largest installed capacity of wind energy, accounting for approximately 38% of the global total.

Decarbonization refers to the process of reducing the reliance on fossil fuels and transitioning to low-carbon or zero-carbon energy sources.