In the present. One cause of global warming is due to human behavior of humans, such as deforestation. Industrial production and use of resources, I don't know value. These things are causing global warming is all for pai.
At present, the cause of global warming is due to human behavior in humans, such as deforestation. Industrial production Resources and use a value unknown. Many of these are causes for global warming is a problem at all.
At present, the cause of global warming is human. Due to human behavior, such as deforestation, the production in the factory. Resource use and fully know the value.