What changes climate?

Answer 1

Global warming is changing the climate. More heat in the atmosphere means more energy, and that is dissipated in different ways, with more extreme weather events like droughts, heat waves, rain and cyclones. Thousands of temperature records were broken in 2012 all over the world.

A:Yes, but what causes global warming? If seasonable variations of daily temperature, rainfall, sunshine, wind speed, etc change greatly over a reasonably long period of time (say 10 years) then we can state that the climate in that part of the world, has changed. Your question is what causes climate change. We can safely say that the activity on the surface of the Sun, will affect change in climate , and if the axis of the planet Earth moved to a different axial position or angle, there would be climate change. Extreme seismic activity, which results in volcanic activity, or movement of the tectonic plates, can effect climate if they are very severe. Human activity can result in air temperature changes in large cities but this change is miniscule compared to seismic activity. Climate in all parts of the world has been changing for thousands of years, but the changes over a period of 100 years are very minor.Most importantly, these small changes go through cycles with rises and falls in annual temps during each decade or so. Real and serious climate change does not happen to any measurable degree that allows us to conclude that a change is permanent and likely to affect food production in the long term, or changes of rainfall or sea levels in the following decade or so. Measurable and serious, and permanent climate change is something which takes several hundreds of years to take place.