I wish to briefly describe how it is that science can show that global warming is indeed happening at an exponential rate, and how we can see that it is human caused rather than by the Earths natural cycles.
There is a simple method to see what CO2 levels were throughout Earths history. In glaciers we can take samples of air which has been trapped in the ice, (air bubbles). With these we can measure the amount of CO2 in the air at the time the bubble was formed. We can see rises and falls from roughly 150-280 ppmv (parts per million by volume) CO2. This greatly depends on Earths orbit. The orbit of our planet fluctuates, as well as pivots on its axis much like a top, causing the earths temperature to rise and fall, thus giving us ice-ages and warm periods: low amounts of CO2 create a cooling, and give us an ice-age. The opposite happens with high measurements of CO2. However, since the industrial revolution the level of CO2 has gone from the average of 280 up to 360-380 ppmv. An unprecedented amount. The more CO2 the more heat.
However, there is still doubt that this increase is caused by human interaction. How do we know it is human caused? We can record the types of CO2 in the atmosphere. There are three major CO2 bases we record: CO2 4, CO2 13, CO2 14. CO2 base 4 comes from very old and dead plants. CO2 base 13 comes from volcanoes, etc. CO2 base 14 comes from newer plants. We can see that in our atmosphere ther eis mostly and high concentrations of CO2 4. CO2 4 comes from fossil fuels, or very old plants.
This shows not only is there much, much more CO2 in the atmosphere, but that it is human caused.
There needs to be a change. A change that our government can hardly take on. It requires a sense of moral obligation at large levels for any effects to be seen. Moral obligations that should be strongly held and encouraged by our LDS faith as well as many other or all faiths. We are taught that we are stewards of the Earth and it is under our charge.