Name any one greenhouse gas and its possible source of production on a large scale. What are the harmful effects of it?

(N/A) prominent greenhouse gas is $Carbon \ dioxide \ (CO_2)$.
Its primary source of large-scale production is the combustion of fossil fuels (coal,oil,and natural gas) in industries,power plants,and automobiles,as well as large-scale deforestation.
The harmful effects of $CO_2$ include:
$1$. Global Warming: It traps heat in the atmosphere,leading to an increase in the Earth's average temperature.
$2$. Climate Change: It causes melting of polar ice caps,rising sea levels,and unpredictable weather patterns.
$3$. Ecological Imbalance: It disrupts ecosystems,leading to the loss of biodiversity and habitat destruction.