Who what when where and why about global warming?

Answer 1

Over seven billion (7,000,000,000) human beings. The CO2 humans exhale has nothing to do with rising carbon dioxide levels. Instead, human activities of digging up and burning fossil fuels like coal and oil, burning down tropical rain forests for cattle ranching, and making concrete release over 30 billion tons of sequestered CO2 per year.

That pretty much answers all five questions.

Answer 2

Global warming is a gradual increase in Earth's overall temperature, primarily caused by human activities such as burning fossil fuels and deforestation. It is happening now and is impacting the planet through rising sea levels, extreme weather events, and disruptions to ecosystems. The why is that the increase in greenhouse gases like carbon dioxide traps heat in the atmosphere, leading to the phenomenon of global warming.