Is global warming merely a natural cycle

Is global warming merely a natural cycle?
Lets find out.


Scientists have been exploring the cause of the planet's rising temperature since the 20th century. Climate change skeptics say that human-caused CO2 emissions don't have an effect


It's true that within its 4.5-billion-year history, planet Earth has experienced periods of lesser and greater warmth.


Altering over many thousands of years, these shifting temperatures have been determined by variations in Earth's orbit around the sun. While greater distances have resulted in colder cycles, shifts closer to the ball of heat have led to warmer, interglacial periods.


In the late 20th century, when scientists started looking at how temperatures have changed over time, they observed a much faster rate of planetary warming from the 1980s than had previously been recorded.


In 2013, research published in the journal Science analyzed even earlier temperatures, dating back 11,000 years. The conclusion was the same: our planet has warmed faster in the past century than at any time since the end of the last ice age.
The study also revealed that for the last 2,000 years Earth has actually been in a natural cooling period in terms of its position relative to the sun.


But this natural cooling has gone unregistered due to unprecedented warming caused by human emissions of greenhouse gases


What do CO2 emissions have to do with climate change?
The greenhouse effect — a natural process that warms the Earth — is necessary to sustain life on the planet. It happens when certain gases in our atmosphere trap the heat emitted from Earth and act as the planet's very own greenhouse. The natural heat-trapping gases in our atmosphere, which include carbon dioxide (CO2), methane and nitrous oxide, are necessary to keep the Earth's surface temperature warm.


Without the greenhouse gas effect, surface temperatures would drop 33 degrees Celsius (59.4 degrees Fahrenheit), according to the World Meteorological Organization (WMO) — making the planet a frozen, uninhabitable place.


For thousands of years, nature had well-regulated the concentration of these gases. But this started changing when humans began burning fossil fuels as a global means of creating energy — resulting in a sharp rise of unnatural CO2 emissions. This has interfered with the planet's atmospheric balance.


And, as a result, Earth started warming faster.