One of the biggest issues that the world has today is climate change. It is a topic that many organizations and governments debate about it often. So, what exactly is climate change and why is it such a huge issue?
Definition of Climate Change
Climate change refers to the long-term and crucial change in the worldwide climate.
The worldwide climate is that the connected system of the sun, earth and oceans, wind, rain and snow, forests, deserts and savannas, and everything people do, too.
A description of the worldwide climate includes how, as an example, the rising temperature of the Pacific feeds typhoons which blow harder, drop more rain and cause more damage, but also shifts global ocean currents that melt Antarctica ice which slowly makes water level rise until the big apple are going to be underwater.
It is this systemic connectedness that produces global temperature change so important so complicated. One of the main factors of climate change is global warming.
Global warming is the steady increase in the average temperature of the earth’s atmosphere because an increasing amount of heat energy striking the earth from the sun is being trapped in the atmosphere and not radiated out into space.
The Earth’s average temperature is about 15C but has been much higher and lower in the past. There are natural fluctuations in the climate, but scientists say temperatures are now rising faster than at many other times.
The greenhouse effect links to this, which describes how the Earth’s atmosphere traps some of the Sun’s energy.
Greenhouse gases absorb and re-emits solar energy radiating back to space from the Earth’s surface in all directions.
This heats both the lower atmosphere and the surface of the planet. Without this effect, the Earth would be about 30C colder and impossible for life to exist.
How much will temperatures rise in the future?
The change within the global surface temperature between 1850 and therefore the end of the 21st Century is probably going to exceed 1.5C, most simulations suggest.
The WMO says that if this warming trend continues, temperatures could rise 3-5C by the top of this century.
Temperature rises of 2C had long been considered the gateway to dangerous warming. More recently, scientists and policymakers have argued that limiting temperature rises to 1.5C is safer.
How can we slow down, or if possible, stop climate change?
Although climate change is a build-up of carbon emissions over time by people, there are still minor things that everyone can do. These include:
- Travelling using public transportation
- Using renewable energy instead
- Reduce water waste
- Do not waste food
- Eat plant-based instead
Although these may be little help to the atmosphere by doing it yourself, once the whole world does it together, it will make a huge difference.
More information about:
- Climate change: ‘Cooling paint’ could cut emissions from buildings
- Top 10 food that is affecting the world’s climate