It is an aspect of climate change, referring to the long-term rise of the planet's temperatures.
Causes:
Heat and electricity production the burning of natural gas, coal, and oil for heat and electricity is considered to be the largest source of global greenhouse gas emissions.
Greenhouse gas emissions from industry primarily involve fossil fuels burned on-site at facilities for energy.
There are other leading factors too which have emerged to contribute towards global warming.
As the reports the main cause of greenhouse gas emissions are electricity /heat production and industry.
The main gas responsible for global warming is CO2.