The Agricultural Revolution of the 18th century paved the way for the Industrial Revolution in Britain. New farming techniques and improved livestock breeding led to amplified food production. This allowed a spike in population and increased health. The new farming techniques also led to an enclosure movement.
don't quote me on this but, I believe the green house effect is caused by the sun. the sun gives of UV rays that penetrates the O zone layer and gets trapped inside causing the earth to get gradually hotter. (I'm not 100% on this)
