Natural gas is a fossil fuel, while solar, wind, and hydropower are all renewable energy sources.

Carbon dioxide is the primary greenhouse gas emitted by human activities, primarily through the burning of fossil fuels.

China is the world's largest producer of solar energy, accounting for over a quarter of global production.

The main challenge associated with energy efficiency is the high upfront costs of implementing energy-efficient technologies.

Energy efficiency reduces energy consumption and lowers energy bills, but it does not increase air pollution.

The primary goal of the Paris Agreement is to limit global warming to 2 degrees Celsius above pre-industrial levels.

Deregulating the energy sector is not a role of governments in promoting energy security.

The main challenge associated with the transition to renewable energy is the intermittency of renewable energy sources, such as solar and wind.

Environmental sustainability does not lead to increased energy consumption.

Individuals can promote energy security and environmental sustainability by conserving energy, using renewable energy sources, and advocating for sustainable policies.

Fossil fuels are not a type of energy storage technology.

CCS technology faces challenges related to high costs, technical limitations, and environmental concerns.

Geothermal energy is not a renewable energy source because it relies on the heat from the Earth's core, which is a finite resource.

Nuclear energy faces challenges related to safety concerns, waste disposal, and high costs.

Energy efficiency reduces energy consumption and lowers energy bills, but it does not increase greenhouse gas emissions.