Climate Change

A Global Warming

Climate is the long-term average of weather, typically averaged over a period of 30 years. Some of the meteorological variables that are commonly measured are temperature, humidity, atmospheric pressure, wind, and precipitation. In a broader sense, climate is the state of the components of the climate system, which includes the ocean and ice on Earth. The climate of a location is affected by its latitude, terrain, and altitude, as well as nearby water bodies and their currents.

This time we will discuss the issue of global warming. Global warming (also called climate emergency or climate crisis) is a process of increasing the average temperature of the atmosphere, sea and land of the Earth.

Global average temperatures on the surface of the Earth have increased by 0.74 ± 0.18 ° C (1.33 ± 0.32 ° F) over the past hundred years. The Intergovernmental Panel on Climate Change (IPCC) concluded that, "most of the increase in global average temperatures since the mid-20th century is most likely due to increased concentrations of greenhouse gases due to human activities"  through the greenhouse effect.

In a recent study, the region of the earth occupied by one third of the world's population, including 145 million Indonesians, will be difficult to survive the next 50 years, due to global warming due to greenhouse gas emissions. In a journal entitled Proceedings of the National Academy of Sciences published in early May 2020, the researchers predict that global warming is occurring very quickly and making one third of the earth's region experiencing drought like the hottest zone in the Sahara Desert. Very fast global warming that will cause 3.5 billion people to live outside of habitable areas or unable to survive. Because the extreme heat conditions will be experienced by most areas that have even been used as a residence for more than 6 million years.

Increased emissions scenario

The main scenario used in this paper is RCP8.5, which represents a future where the concentration of greenhouse gases in the atmosphere is high. The scenario shows that emissions continue to increase without cessation, the temperature that will be felt by an average person will increase 7.5 degrees Celsius hotter in 2070.

The temperature condition is higher than the estimated increase in global average temperature, namely 3 degrees celsius. The prediction conditions for an increase in temperature to 7.5 degrees Celsius are caused by two things, namely the land will warm faster than the sea and the population growth is now heading to a hot place.

Expansion of very hot regions in the climate scenario when doing business as usual. In the current climate, the average annual temperature of more than 29 degrees Celsius is limited to small dark areas in the Sahara region. Ironically, a very rapid rise in temperature and combined with changes in global population globally, can make about 30 percent of the world's population who will live in temperatures where the average temperature is above 29 degrees Celsius in the next 50 years.

The hottest zone of the sahara desert

Svenning said conditions with the hottest zone on the Sahara mountain are currently only felt by 0.8 percent of the Earth's surface, but by 2070 such conditions will be able to spread to 19 percent of the Earth's land area.

Meanwhile, Professor Marten Scheffer of Wageningen University said that while billions of people are locked in by the current Covid-19 virus pandemic, it is a real reminder that high carbon emissions will put the world's population at increased risk and other unprecedented crises previous. "Corona virus has changed the world in ways that were difficult to imagine before and the results of our research show how climate change can do the same thing," Scheffer added. He said the change would be faster, but not like the Covid-19 pandemic that a rescue vaccine could look for.

The Desert: Journey through the Sahara lays bare effects of climate change

Source :

1. https://en.wikipedia.org/wiki/Climate
2. https://www.ipcc.ch/
3. https://www.google.com/search?q=virus+corona&hl=id
4. https://www.youtube.com/watch?v=s9m_2C-FgIQ
5. myself

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