The UNFCCC was held in Rio de Janeiro, Brazil, in 1992. It was the first international treaty to address climate change.

The Paris Agreement was adopted in 2015 and entered into force in 2016. It sets a goal of limiting global warming to well below 2 degrees Celsius, preferably to 1.5 degrees Celsius, compared to pre-industrial levels.

The IPCC was established in 1988 by the World Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP). It is a scientific body that provides regular assessments of the scientific, technical and socio-economic information relevant to understanding climate change.

The Cretaceous period lasted from 145 to 66 million years ago. During this time, the Earth's climate was much warmer than it is today, and there were no ice caps at the poles.

The Ice Age lasted from about 2.6 million years ago to 11,700 years ago. During this time, the Earth's climate was much colder than it is today, and there were large ice sheets covering much of the Northern Hemisphere.

The Holocene epoch began about 11,700 years ago and continues to the present day. During this time, the Earth's climate has been relatively stable, and there have been no major ice ages.

Carbon dioxide is the greenhouse gas that is most responsible for climate change. It is produced by the burning of fossil fuels, such as coal, oil, and natural gas.

The greenhouse effect is the process by which the Earth's atmosphere traps heat. Greenhouse gases, such as carbon dioxide, methane, and nitrous oxide, absorb heat from the sun and prevent it from escaping into space.

Global warming is the phenomenon that occurs when the Earth's average temperature increases. It is caused by the greenhouse effect, which is the process by which the Earth's atmosphere traps heat.

Climate change is the phenomenon that occurs when the Earth's climate changes. It is caused by a variety of factors, including global warming, changes in land use, and changes in the Earth's orbit around the sun.

The three main types of climate change are global warming, climate change, and the greenhouse effect. Global warming is the phenomenon that occurs when the Earth's average temperature increases. Climate change is the phenomenon that occurs when the Earth's climate changes. The greenhouse effect is the process by which the Earth's atmosphere traps heat.

The main causes of climate change are the burning of fossil fuels, changes in land use, and changes in the Earth's orbit around the sun.

The main effects of climate change are rising sea levels, more extreme weather events, and changes in plant and animal life.

To mitigate climate change, we can reduce greenhouse gas emissions, adapt to the effects of climate change, and invest in renewable energy.

To adapt to the effects of climate change, we can build sea walls, improve flood control systems, and develop drought-resistant crops.