Question

Please describe in three full paragraphs,how we know anthropogenic climate change is or isn’t occurring.

Answer 1

Ans) A climate model incorporates physical laws, initial and boundary conditions, in order to describe the realistic evolution of climate.

- Computer programs used by climatologists.

- The cause of climate change can be attributed by:

There are natural forcings ie. volcanoes changes plate tectonics, volcanoes, orbital perameters, solar fluctuations, and anthropogenic forcings ie. burning fossil fuels, farming (rids of co2 sinks), clearing trees (rids of co2 sinks).

- Anthropogenic forcing: Greenhouse Gas Emissions

- Water vapor (H2O)
- Carbon dioxide (CO2)
- Methane (CH4)
- Nitrous Oxide (N2O)
- Ozone (O3)

specifically CARBON DIOXIDE.

- Climate change considers all the changes occurring in our climate, including precipitation patterns and natural disasters.

- Climate change is the overall result of anthropogenic activities such as global warming.

- Examples seen: Mississippi River flooding (2011), Jiangxi province in China (2009), desertification, pacific islands flooding, farming acidity in India, more severe storms, etc.