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Back in the 1890s, however, the concept of warming the planet was remote and even welcomed. Although in the 1820s a mathematician and physicist brought up the idea of global warming. He stated“That energy reaching the planet as sunlight must be balanced by energy returning to space since heated surfaces emit radiation. But some of that energy, he reasoned, must be held within the atmosphere and not return to space, keeping Earth warm.”

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In the 1970s they had the first earth day. The public stared to get concerned with the weather and other things. Scientists started looking more into the earth’s climate. They had a study about it at the Massachusetts Institute of Technology.

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In 2007 they noticed that the ice in the Arctic we’re melting earlier then normal. This even made people who think global warming don’t exist concerned.

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2020 was one of the three warmest years on record.In 2020, COVID-19 added a new and unwelcome dimension to weather, climate and water-related hazards, with wide-ranging combined impacts on human health and well-being. Mobility restrictions, economic downturns and disruptions to the agricultural sector exacerbated the effects of extreme weather and climate events along the entire food supply chain, elevating levels of food insecurity and slowing the delivery of humanitarian assistance. The pandemic also disrupted weather observations and complicated disaster risk reduction efforts.

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In 2021 we had an estimate of 8,619 wildfires. And while the amount of land burned this year didn’t reach 2020 levels, a troubling new trend emerged: fires are getting harder to fight.Fires committed feats never seen before. “For the first 25 years of my career, fires moved in a certain way and in a certain fashion but now they are acting very uncharacteristically,” said Jon Heggie, CalFire battalion chief. “There’s no denying that fires are burning hotter and faster.”

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Polar ice caps are melting as global warming causes climate change. We lose Arctic sea ice at a rate of almost 13% per decade, and over the past 30 years, the oldest and thickest ice in the Arctic has declined by a stunning 95%. A new study of satellite data sees Arctic ice melting at an alarming rate. Scientists have warned that the Arctic Ocean could be totally ice-free in summer for the first time as soon as 2035 due to climate change.

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An increase in average temperatures worldwide implies more frequent and intense extreme heat events, or heat waves. The number of days with high temperatures above 90°F is expected to increase throughout the United States, especially toward the end of the century. Climate models project that if global emissions of greenhouse gases continue to grow, summertime temperatures in the United States that ranked among the hottest 5% in 1950-1979 will occur at least 70% of the time by 2035-2064.

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Heavy precipitation events will likely be more frequent, even in areas where total precipitation is projected to decrease. Heavy downpours that currently occur about once every 20 years are projected to occur between twice and five times as frequently by 2100, depending on location. Northern areas are projected to become wetter, especially in the winter and spring. Southern areas, especially the Southwest, are projected to become drier.

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Northern Hemisphere snow cover is expected to decrease by approximately 15% by 2100. The coastal sections of the Greenland and Antarctic ice sheets are expected to continue to melt or slide into the ocean. If the rate of this ice melting increases in the 21st century, the ice sheets could add significantly to global sea level rise.

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Since 1870, global sea level has risen by about 7.5 inches. Estimates of future sea level rise vary for different regions, but global sea level for the next century is expected to rise at a greater rate than during the past 50 years. Studies project global sea level to rise by another 1 to 4 feet by 2100, with an uncertainty range of 0.66 to 6.6 feet.