TEXT 2Climate change is the consequence of unchecked pollution. When carbon emissions caused by human activity enter the air they have dong.ous effects on the environment, the economy, and our wellbeing. But just as humans cause it, we can stop its progress. Climate change is caused by trapping excess carbon in Earth's atmosphere. This trapped carbon pollution heats up, altering the Earth's climate patterns. The largest source of this pollution is the burning of fossil fuels such as coal and oil for energy.
While carbon has entered the atmosphere for millions of years through natural events such as forest fires and volcanoes, the burning of fossil fuels and the clearing of land have resulted in the highest levels of greenhouse pollution in our atmosphere in the last 800,000 years. The Earth's atmosphere has evolved to retain sufficient warmth from thesun to encourage a healthy, dynamic ecosystem, while shielding us from its harsher effects. The introduction of huge amounts of excess pollutants thickens this blanket ofprotective gases, causing heat to remain trapped within, rather than harmlessly escaping skywards. These gases can remain in our atmosphere for up to 90 years, contributing to long-term warming.

What is the topic of the text?
A. Processes in the event of greenhouse pollution.
B. Relationships between pollution and climate.
C. Effects of air pollution on the atmosphere
D. Meanings of global warming.
E. Causes of climate change.

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