The effects of global warming are been a very important topic of concern in today’s scenario. If you are searching for the causes of global warming, or want to know global warming meaning than you are in the right place. Here is everything you need to know about global warming and climate change along with global warming drawing and prevention of global warming as well.
First of all we must understand if there are no effects of global warming then, Why are people (young – and not so young) becoming more vociferous in their protests about global warming?
Why has global climate change become a political and partisan issue at democratic elections?
Why do ‘greenies’ attempt to stop the event of the latest coal mines and demand speedier reduction of our greenhouse emission emissions?
The solution is that the consequences of greenhouse emission emissions, particularly CO2 (CO2), are getting increasingly evident and dangerous although relatively mild at the moment, compared to what they may soon become.
Much is being said about the price of reducing greenhouse emission emissions in terms of lost jobs, lost income, and harm to national and global economies but we hear relatively little about the catastrophic consequences of not reducing emissions.
Prioritizing short term profit and beliefs prior to emissions reduction will inevitably end in an uncontrollable, unpredictable, and destructive climate leading to socio-economic collapse.
Analysis of air trapped in ice cores shows that over the past 800,000 years, the traditional concentration of CO2 within the air varies between 170 parts per million (ppm) during cold periods (so-called Ice Ages) to 260-300 ppm when the world reaches its warmest.
The concentration of CO2 within the atmosphere now stands at over 415 ppm and is constant to rise at an accelerating rate as we burn ever-increasing amounts of fossil fuels.
For overrun a century it’s been widely known that CO2 absorbs infra-red light reflected from the earth’s surface then re-emits it, much of it back to the surface.
The upper the concentration of CO2 within the atmosphere, the hotter the surface temperature gets a phenomenon called heating which includes a number of effects of global warming.
Top Devastating Effects of Global Warming:
- Ocean warming.
- Loss of land-based ice and permafrost.
- Global climate change becomes less predictable.
- Water level rise.
Below is the detailed information of effects of global warming:
1. Ocean Warming:
Ocean warming is one of the effects of global warming.
Most of the extra heat generated by rising levels of CO2 within the atmosphere is absorbed by the oceans.
As a result, the surface temperature of the sea is rising and already causing:
- Thermal Expansion:
- Coastal Erosion:
- Arctic Erosion:
- Warmer bottom water:
- Coral Die-off:
As its temperature increases, seawater expands, contributing to water level rise, changes in ocean circulation and better seabed water temperature which can be damaging and pose the hazards.
The rise in water level, combined with other factors like:
- Stronger wind events.
- Loss of natural barriers protecting the coastline.
- Ending in increased coastal erosion endangering infrastructure.
- Buildings, and other facilities located in close proximity to the coastline.
The ocean is warming, leading to stronger storm activity and reduced sea ice formation, both contributing to the erosion of coastlines hitherto kept stable by permafrost and sea ice reducing wave action.
This causes increased exposure and thawing of methane (CH4) bearing sediments and yedoma leading to the emission of this gas and its oxidation to CO2, contributing to its rising presence within the atmosphere and further warming.
Warmer bottom water:
This is often accelerating the melting of ice enabling faster result glaciers discharging to the oceans.
The erosion of the marine ice sheet covering the West Antarctic archipelago causing water level rise to accelerate and reduce the stability of the ice sheet.
Warming seawater, particularly where shallow like that covering the East Siberian Arctic Shelf, causes thawing of permafrost sediments containing CH4, which is being released on to the atmosphere, contributing to accelerated heating.
Reefs comprise a good form of corals often growing in relatively shallow water.
Coral reefs are weakened by human pollution making them vulnerable to predation but are severely stressed or killed as a group by seawater temperature rising by 2C or more for 6-10 weeks.
Their loss exposes nearby coastlines, often low-lying to erosion and floods, damages fish habitat, and decreases human-consumed fish catch.
2. Ice Loss:
Mountain glaciers store water that flows into the rivers on which human populations depend on potable water, irrigation, food production, transport, and generating energy, often in areas of huge population.
These glaciers are storing less water and melting faster in order that within the future sufficient water might not be available for an expanding human population and its increasing demand for food and potable water.
- Land subsidence.
- Polar ice sheets.
- Ice melt.
Vast areas of land within the Arctic contain partly decomposed biota, sediments containing CH4 produced from biota decomposition, and yedoma.
These lands are permanently frozen but heating produces surface temperatures which end in it melting faster and to a greater depth.
Because it melts, it exposes biota which thaws, resuming decomposition and producing CH4 much of which is converted to CO2 through oxidation by methanotrophic bacteria, then emitted to the atmosphere.
As permafrost melts the land subsides and becomes covered, in shallow water creating anoxic conditions within which methanotrophs aren’t active and this leads to CH4 from decaying biota and thawing yedoma being released to the atmosphere.
CH4 and CO2 emitted from permafrost land thawing accelerate heating.
These emissions are already occurring and might not be safely controlled by human intervention.
Buildings and infrastructure built on permanently frozen land, particularly in Russia and Alaska, are put in danger when warming surface temperature causes permafrost to thaw and therefore the land to subside.
Transport infrastructure, electricity supply, water, and sewage mains, oil and gas pipelines and buildings and bridges – even entire cities are in danger.
Land subsidence is probably going to cause damage to the environment.
Eg. spills from ruptured pipelines. it should prove so costly to repair damage caused by subsidence on force asset abandonment.
Polar Ice Sheets:
heating causes the surface of the Greenland Ice Sheet to melt faster, leading to rivers flowing on its surface, terminating in moulins through which they drain to bedrock.
This intensely cold water lubricates the underside of the ice-sheet making it more mobile, before draining into the Atlantic Ocean where it contributes to disruption of overturning circulation and flow of the Gulf stream.
Disruption of overturning circulation traps warmer water on the seabed allowing the underwater ice sheet of the West Antarctic to melt at its root, leading to its instability.
Warm seawater penetrates polar glaciers eroding ice blockages, enabling glaciers to discharge ice at faster rates leading to ice sheets becoming less stable, as evidenced in Greenland and West Antarctica.
This contributes to faster water level rise which increases the chance of coastal erosion and flooding. Loss in ice sheets is also one of the devastating effects of global warming.
3. Climate Change:
The temperature of the troposphere is now just below 1°C above the pre-industrial and is constant to rise because of the increasing emission of greenhouse gasses.
This warming is characterized by less predictable, increasingly severe weather events, which include the following:
temperature extremes are setting new record highs and fewer days of maximum cold, though these do occur within the hemisphere because of distortion of the polar vortex.
affecting farmland and habitat are getting longer-lasting – in many cases lasting over 5 years and reducing river flows.
Increased evaporation of water from soil and lakes occurs because the troposphere is getting warmer and able to hold more water within the variety of vapor.
Wind Events like cyclones and tornados could also be less frequent but are more powerful and destructive, their strength increased by rising sea surface temperature.
In some areas, rainfall has settled down frequently but heavier and of longer duration, while hail storms became more severe, often with larger hailstones.
On-going heating will cause these events to become more frequent, last longer, and become more severe. Alone or together they’ll still cause increasing damage to the environment within the following ways:
Rising temperatures are the principal reason behind coral reefs dying, the loss of fish habitat and therefore the protection they supply to low-lying coastal land from erosion by ocean wave action, making them susceptible to flooding.
On-shore temperature extremes are already setting new record highs leading to declining food production and premature deaths.
Droughts and evaporation of surface water produce similar effects, converting some food bowls to dust bowls, increasing the speed of desertification, and killing flora and fauna.
Droughts in some parts of Australia have lasted over 8 years, causing rivers to dry, preventing crop sowing, forcing destocking, and overland transport of water to enable the survival of town populations.
Combined, these events end in ferocious bushfires which are increasingly difficult to regulate, causing huge losses of trees, vegetation, fauna, and property – including livestock – all becoming more and more costly to switch, more often forcing abandonment.
They also enable pathogens and pests like mountain pine beetles to invade and kill various trees and therefore the spread of vectors carrying human diseases into areas hitherto freed from them.
Wind events, often amid heavy rainfall, are getting more frequent and sometimes end in flooding, loss of human life, damage to property, the environment, and crop losses.
They produce tidal surges that erode coastlines and flood low lying land.
Climate change is also one of the scariest effects of global warming.
4. Water Level Rise:
We know that thermal expansion caused by ocean warming and loss of mass from ice sheets and glaciers are the first causes of water level rise.
Less certain is that the speed with which these causes go.
Many climate scientists specializing during this area, notably those contributing to IPCC Assessment Reports, are of the view that these are relatively slow processes indicating water level rise of 0.52-0.98 meters by 2100.
Others, including leading specialists in this field, point to evidence showing more rapid loss of ice sheets, producing much faster, multi-meter water level rise over the identical period due to accelerating loss of mass from both the West Antarctic and Greenland ice caps, primarily as a result of increased glacier discharge rates.
Many of the worlds’ cities are located on low coastal land which is incredibly susceptible to a multi-meter rise in water level.
Australia’s Gold Coast with many kilometers of canals connected to the ocean, Miami in Florida, even megacities like Shanghai would sustain heavy damage from water level rise.
Island nations like Kiribati and the Maldives would be flooded, forcing abandonment.
An increase of a minimum of 2 meters is now thought possible by 2100.
World-wide the worth of coastal property is probably going plummet by many various dollars since there’s no protection from rising seas or the increasingly severe storms which they’ll produce.
Several hundred million people may retreat from coastal areas threatened by rising water levels the century.
The rise in water level is also there when we talk about the scary effects of global warming.
Global Warming Conclusions:
For quite fifty years, climate scientists have warned that continued emission of greenhouse gasses into the air, particularly CO2, would end in temperature change and if the average global temperature rises by quite 1.5°C. above pre-industrial levels, those changes would be dangerous.
If the average global temperature rises by quite 2°C climate changes could become catastrophic, threatening most life in the world.
If we still ignore these warnings, we do so at our peril. In practice, we’ve ignored them.
There is only 1 way of averting the outcomes described above which is by stopping all use of fossil fuels over the following 10-20 years, improving the power of natural carbon sinks and new technology to soak up CO2 from the atmosphere.
Transition to a decarbonized economy is often achieved within this point frame.
And, within the process, renewable energy required by the human population could become unlimited in its availability, instead of a constraint on innovation.
There is a price to pay for achieving this. The value is to scale back the demand for fossil fuels to fulfill our energy needs and replace them with renewable energy.
Reduction in demand for fossil fuels will end in the shut-down of oil fields and refineries, closure of coal mines, and stopping production and use of gas over the following 20 years.
We’ve long known the inevitability of those outcomes and therefore they must ensure they’re achieved in a very planned, orderly way, involving retraining and re-employment of these currently engaged in them.
Too higher price to pay?
Not when putting next with the choice which is to resist change and, within the interests of maximizing profit, still move far too slowly to avert increasingly dangerous outcomes.
Kids like Greta Thunberg rightly protest against Global Warming.
And people accountable for killing flora and fauna (which includes humans), destroying their habitat and giving impetus to the 6thmass extinction now ongoing.
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