The planet’s average surface temperature is rising, a change driven largely by increased carbon dioxide emissions into the atmosphere and other human activities. Most of the warming occurred in the past 40 years, with the seven most recent years being the
Earth stores 90% of the extra energy in the ocean. The ocean absorbs much of the increased heat arising from the rise in earth’s temperature, with the top 100 meters (about 328 feet) of ocean showing warming of more than 0.33 degrees Celsius since 1969.
The planet’s average surface temperature is rising, a change driven largely by increased carbon dioxide emissions into the atmosphere and other human activities. Most of the warming occurred in the past 40 years, with the seven most recent years being the warmest. The years 2016 and 2020 are paired for the warmest year on record. As human activities (primarily the burning of fossil fuels) increase, the earth becomes warmer [some regions may welcome warmer than others]. Warmer conditions will probably lead to more evaporation, which causes shortage of water and gradual extinction of living ecosystem etc
Earth stores 90% of the extra energy in the ocean. The ocean absorbs much of the increased heat arising from the rise in earth’s temperature, with the top 100 meters (about 328 feet) of ocean showing warming of more than 0.33 degrees Celsius since 1969.
This heat absorption causes the ocean ice to melt. Ocean waters melting the undersides of Antarctic ice shelves are responsible for most of the continent’s ice shelf mass loss. Scientists have found basal melt accounted for 55 percent of all Antarctic ice shelf mass loss from 2003 to 2008, an amount much higher than previously thought.
They also compared the rates at which the ice shelves are shedding ice to the speed at which the continent itself is losing mass and found that, on average, ice shelves lost mass twice as fast as the Antarctic ice sheet did during the study period. This is a call for concern and we must take action
Satellite observations reveal that the amount of snow cover on the earth has decreased over the past five decades and the snow is melting earlier.
Snow also supports life. Melting of seasonal snow provides water for drinking and irrigating crops in many parts of the world. Snow melt moisturizes soil and reduces the risk of wildfire.
Snow and ice cover most of the Earth’s polar regions throughout the year, but when the heart from earth’s temperature rises, it melt earlier and do not support life.
