Scientists conduct their research on global warming because they require evidence to show people that the Earth experiences significant natural cycles which control its historical changes. Extreme temperature variations have occurred on Earth during the last few million years because of its extended Ice Ages which included brief warm periods that continue until now. Researchers conduct their studies on climatic patterns to forecast upcoming climate variations that will occur during the next several hundred years.
The Natural Cycle of Planets
Earth maintains a constant temperature throughout time. The planet follows natural cycles which repeat approximately every 100000 years throughout its history of millions of years. The planet spends most of its time in a Glacial Period which lasts through Ice Ages except for brief warming periods that last 10000 to 15000 years. Our current warm period has persisted for 11500 years which indicates that our planet has reached its final stage of summer.
Changes in Earth’s Orbit
Earth follows its present orbit around the sun which leads to the start of Ice Ages. The two Earth orbit patterns display their two main forms which include a circular path and an elliptical path. The solar heat that reaches Earth will decrease through this change because we are approaching a position that generally results in cooling.
The “Wobble” of the Axis
Earth “wobbles” on its axis because of its spinning top motion which progresses through thousands of years. The planet’s tilt determines the amount of sunlight that reaches both its North Pole and South Pole areas. The Northern Hemisphere receives less summer sunlight at this particular tilt angle which leads to snow accumulation and eventual development of substantial ice sheets.
The Role of the “Interglacial” Period
The Holocene period serves as the current “interglacial” phase of our time. Warm breaks throughout history show that they only exist during their short time period. The Earth should enter its natural cold period because geological evidence shows that this state has not been present since geologic time began.
Ocean Current Disruptions
The Gulf Stream and other ocean currents show signs of an approaching Ice Age through their decreased movement rates. The warm water from the equator moves through these currents which function as a conveyor belt system. Northern Hemisphere cooling takes place at a quick pace when melting glaciers discharge fresh water into the ocean because this condition interrupts ocean currents.
Carbon Dioxide as a “Buffer”
Human activities currently release excessive $CO_{2}$ emissions which lead to heat retention that postpones the beginning of the next Ice Age. Scientists believe that human activities result in current warming which prevents the Earth from entering its natural cooling phase. Natural climatic cycles create massive temperature fluctuations which will eventually cause the world to return to its original cold state.
Solar Minimums
The sun goes through a cycle of brightness and dimness that operates like a heartbeat. The upcoming period will bring us upcoming times of reduced solar energy. This phenomenon functions as a cooling effect that combines with existing environmental transformations to decrease Earth temperatures, although it lacks the power to initiate an Ice Age by itself.
Atmospheric Dust
Atmospheric dust levels rise during the time period that leads to an Ice Age. The dust particles in the air create additional obstacles which prevent sunlight from reaching the ground. Scientists discover this evidence through the study of deep ice cores from Antarctica which function as a historical record of Earth’s climatic history.
The Accumulation of Snow
The transition to an Ice Age doesn’t happen overnight. The process begins when snow fails to melt in Canadian and Siberian territories during summer. The process turns snow into ice which moves southward as glaciers due to yearly compression of accumulated snow.
