A professor of atmospheric sciences, Richard Lindzen, believes the recent global warming is just yet another phase in the life cycle of Earth. He believes the current warming trend is the result of natural phases, where a planet goes through warming and cooling and the human contribution to it is slim to none (Future). We all know that at one point or another Earth has …show more content…
They rose till about 1945, cooled until about 1975 and have risen steadily to present day. (A Natural). There are several possible reasons for the warming. A change in the Earth 's orbit. Tiny wobbles in Earth’s orbit can alter when and where sunlight falls on Earth’s surface. The intensity of the Sun 's radiation could change, triggering warming or cooling.Variations in the Sun itself could increase and decrease the amount of solar energy reaching Earth. In the past, volcanic eruptions have generated particles that reflect sunlight. Volcanic activity has also increased greenhouse gases over millions of years, causing phases of global