“The world is heating up, and the evidence surrounds us. From rising sea levels to extreme weather events1, it’s clear that climate change is not just a theory – it’s happening right now. But despite overwhelming scientific consensus, some still deny its reality. In this post, we’ll explore the facts behind climate change and why it’s time for everyone to take action before it’s too late.”

The science behind climate change

Climate change is one of the most pressing issues of our time2, and its effects are already being felt worldwide. While there is still much to learn about the science behind climate change, the evidence that it is happening is overwhelming.

Climate change is caused by a build-up of greenhouse gases in the atmosphere. These gases trap heat and prevent it from escaping into space, causing the Earth’s average temperature to rise. The main greenhouse gas responsible for climate change is carbon dioxide3, released when we burn fossil fuels such as coal and oil.

Over the past century, the Earth’s average surface temperature has risen by around 1°C. This may not sound like much, but it has already impacted our climate. We are seeing more extreme weather conditions, such as heatwaves, droughts and floods. Sea levels rise due to melting ice caps and glaciers, and ecosystems are disrupted as species struggle to adapt to changing conditions.

The science behind climate change is complex4, but the evidence that it is happening is undeniable. We must act now to reduce our emissions of greenhouse gases and mitigate the impacts of climate change before it’s too late.

The effects of climate change

Climate change is having a real and tangible impact on our world. The effects of climate change are being felt by people, plants, and animals all over the globe. Climate change is causing more extreme weather events, like more frequent and intense hurricanes, floods, droughts, and wildfires. It’s also causing sea levels to rise and glaciers to melt. These changes are already making it harder for people to grow food and access clean water. They’re also exacerbating poverty and social inequality. As the effects of climate change become more severe, they will increasingly threaten our health, food supply, economy, and way of life.


Venice is one of the most popular tourist destinations in the world, but it is also one of the most vulnerable cities to climate change. The city is built on a series of canals and a lagoon, making it susceptible to rising sea levels. In addition, Venice experiences frequent flooding due to its location and the high tides.

While Venice has always been susceptible to flooding, the frequency and severity of floods have increased in recent years due to climate change. In November 2019, Venice experienced its worst flood in 50 years, with water levels reaching up to six feet5. The damage from the flood was estimated at over 1 billion euros. 

Climatologists expect that sea levels will continue to rise in the coming years, exacerbating the problem. As a result, Venice could be permanently submerged within a few decades if nothing addresses this issue.  The city is already taking steps to adapt to the changing environment. For example, a multi-billion dollar project is underway to build a series of barriers that will protect Venice from flooding. However, whether or not this will be enough to save the city remains to be seen. (Image Source: Google)


Chennai is one of the most severely affected cities by climate change. The city is constantly dealing with Extreme Weather Events, such as floods and droughts. By 2027, 100 metres of the coast in Chennai can get submerged due to a projected 7 cm rise in the sea level6. In addition, the city is also facing water shortages due to the depletion of groundwater resources.

The city has struggled to cope with these problems, and the situation is only worsening. The government has been working on various mitigation and adaptation measures, but they have yet to be very effective. The citizens of Chennai are also doing their best to try and cope with the situation, but it is becoming increasingly difficult. (Image Source: Google)


Mumbai is one of the world’s most populous and densely populated cities. The city experiences a tropical wet and dry climate. Mumbai has a long coastline and is vulnerable to sea-level rise and flooding.

The Intergovernmental Panel on Climate Change (IPCC) predicts that by 2070, sea-level rise will inundate 10-15% of Mumbai’s land area with a 1m rise in global mean sea level (GMSL). With a projected GMSL rise of 2m by 2100, up to 37% of Mumbai’s land area could be flooded. In addition, the city is projected to experience more extreme precipitation events, which could lead to flooding and landslides.

Climate change will also have an impact on Mumbai’s economy. The city’s port is expected to be affected by sea-level rise and more extreme weather events, which could lead to disruptions in trade. In addition, tourism – one of Mumbai’s significant industries – is likely to be impacted as extreme weather events and sea-level rise deter tourists.

The potential impacts of climate change on Mumbai are severe7, and the city is already feeling the effects of a changing climate. Therefore, cities like Mumbai need to take adaptive measures to protect themselves from the consequences of climate change. (Image Source: Google)


Bangalore is one of the most rapidly growing cities in the world. It has experienced some of the worst floods in the last few years. Scientists believe climate change is one of the reasons for the increased flooding.

In June 2017, Bangalore was hit by a severe flood that caused widespread damage to property and infrastructure. As a result, the city was submerged under water, and many people were stranded without access to necessities like food and water.

Climate change is expected to make Bangalore’s situation worse. Rising regional temperatures could lead to more frequent and severe floods, impacting the city’s infrastructure and economy8. To mitigate these risks, the government of Karnataka has launched several initiatives such as rainwater harvesting, desalination plants and flood control projects.

This year, Bangalore is again facing the threat of floods as the monsoon season approaches. The city authorities are taking necessary precautions to ensure the safety of its citizens. Still, it remains to be seen how well they will be able to cope with this natural disaster. (Image Source: Google)

Other severely affected cities

Venice, Chennai, Mumbai, and Bangalore are just a few cities worldwide facing severe consequences due to climate change. Rising sea levels and increased flooding are already wreaking havoc in these coastal communities.

Climate change affects cities worldwide in different ways, depending on their location, infrastructure, and other factors. Cities like Venice, Chennai, Mumbai and Bangalore are most severely affected by climate change. These cities face various challenges, from rising sea levels and flooding to extreme weather events and water shortages. If we want to protect these cities from the worst effects of climate change, we must take adaptive measures before it’s too late. In Venice, for example, floods have become so common that the city is considering building elevated walkways to help residents and visitors navigate the flooded streets.

Meanwhile, Chennai has been grappling with a severe water crisis due to its declining groundwater levels. And in Mumbai, heavy rains have caused widespread flooding and damage to infrastructure. These are just a few examples of the visible consequences of climate change that are being felt by cities around the world.

How to prevent climate change

There is no one silver bullet for preventing climate change, but there are several things we can do to make a difference collectively. 

We can start by reducing our reliance on fossil fuels and transitioning to cleaner energy sources like solar and wind power. We can also make changes in our daily lives to conserve energy, like using public transportation or carpooling and making our homes and businesses more energy efficient. 

Collectively, these efforts will help reduce greenhouse gas emissions and slow the pace of climate change. But it’s important to remember that we all have a role in protecting our planet – no matter how big or small our contribution.

What is being done to stop climate change?

Various measures are being taken at the global, national, and local levels to mitigate the effects of climate change. The United Nations Framework Convention on Climate Change (UNFCCC) is an international treaty providing a framework for action to combat climate change9. In addition, the Paris Agreement, adopted in 2015, is a legally binding extension of the UNFCCC that requires all signatory nations to reduce their greenhouse gas emissions. 

At the national level, many countries have enacted legislation to address climate change. For example, the United States has passed the Clean Air Act and the Clean Water Act, which regulate air and water pollution. In addition, many countries have pledged to increase their use of renewable energy sources to reduce their reliance on fossil fuels. 

There are also many things that individuals can do to help stop climate change. Conserving energy by reducing your electricity consumption, eating less meat (which emits large amounts of greenhouse gases), and recycling are all great ways to help. Every little bit counts!


Climate change is an undeniable reality that we must all work together to address. The effects of climate change are already being felt around the world, from rising sea levels to more frequent extreme weather events, and it’s up to us—as individuals, as citizens, and as a global community—to take action now to save our planet. By making simple lifestyle changes like using renewable energy sources or reducing our consumption of animal products, we can make a real difference in curbing the impacts of climate change. Let’s create a better future for ourselves and future generations!

Article By

Abhijith Magal L.
I've been working as a global marketer in the healthcare industry for about 6 years. I've been able to visit some incredible locations and interact with some fascinating individuals because of my activities as a part-time traveler, photographer, and adventurer. I have a strong interest in the environment and animal welfare & environment and I try to do my part to improve the world. The thepolarbearwriter is my personal project. thepolarbearwriter explores climate change and related socio-environmental issues that are impacting the world.

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