Climate change is currently one of the most significant global issues, and the adverse effects are intensifying, becoming visible even earlier than forecasted. Globally, extreme weather is on the rise mainly caused by the polar ice melt and an increase in temperatures. Every month of the year 2023 has now been marked as the warmest, with July to September highlighting a 1.0 degrees Celsius increase in global temperature above the long-term average as stated in the Global Climate Report. NASA has also confirmed that 2023 was one of the hottest years.
Projections for the future indicate constant extreme weather and humanitarian crises due to heat waves, fires, floods, and storms if no action is taken. According to the U.S Global Change Research Program, average temperatures could increase by as much as 5 degrees Celsius by the end of the century but if drastic cuts are made to greenhouse gases then the increase could be limited to under 2 degrees Celsius. This is why collaborative efforts are vital to tackling climate change given its wide and diverse effects on health, economy, culture and technology. In this blog, these effects are discussed in detail, pointing at the need for further actions to be taken now.
Climate change is the systematic changes in weather over a long period characterised by increased temperatures by human activities such as the burning of fossil fuels, cutting down trees, industrial waste production, massive urbanisation, harmful vehicle emissions, ocean acidification and much more. These activities enhance the concentration of greenhouse gases in the atmosphere and lead to the enhancement of heat-trapping within the space around the earth thus raising the degree of temperatures.
The impacts of climate change are far-reaching as it results in more regular and heavy storm occurrences like hurricanes, flooding, and droughts, negatively affects agriculture production, and jeopardises food security.
Furthermore, global warming and environmental degradation threaten the existence of wildlife and impact human beings, including displacement due to floods and the issuance of new homes and land is costly to the sooner hence impacting the economy through loss of productivity and infrastructure. Thus, it can be said that climate change is a powerful force in altering many aspects of our environment, quality of life, finances, and national structures.
One of the biggest problems of the twenty-first century is undoubtedly climate change, which has an impact on every aspect of life. Their reach extends beyond the ecology to the economic sphere, where calls for change to promote sustainability transform global socioeconomic and geographical landscapes. Owing to the interdependence of these domains, climate change has an obvious and interrelated impact on each of them.
Heat stroke and other heat-related diseases and deaths have been found to increase as global temperatures rise. Despite improvements in the ratio of hospital admissions to heat-related diseases, recent trends indicate an overall rise in environmental temperature with consequent increase in the incidence of heatwaves which has resulted in a 70% increase in ailments. In the same regard, the incidence of diseases that are conveyed by vectors like malaria and dengue fever are more prevalent in warmer states given their adverse health implications. Scientists and global agencies all expect that failure to arrest climate change will lead to an additional 250,000 deaths per year from malaria, heat stress, diarrhoea, and malnutrition by the years 2030 to 2050 as estimated by the World Health Organisation.
Tornadoes, flash floods, and fire are examples of natural disasters that have been estimated to cost about 1.5 trillion $ in damages globally per annum between 2010 and 2019. Another effect related to the financial aspect is the issue of food insecurity that arises from unfavourable weather conditions affecting agriculture. Yields per crop are set to decline by as much as 25 per cent in some areas by 2050, a daunting problem for the agriculture sector. The financial consequences do not stop at tangible impacts; they affect the global markets for products, insurance rates, and financial stability.
Large numbers of people may be displaced because the areas they currently live in become unsuitable for habitation because of the effects of climatic conditions and increased flooding levels. It is predicted that up to 200 million people may have to migrate to other regions to look for safer shelters for habitation as a result of climate change in the world by the year 2050. Social harmony and cohesiveness are significantly compromised given the extensive scale of this displacement. World heritage cultural sites are also not safe for the moment as well for whatever reason known to man. The global culture is at risk due to the increased levels of seas and the deterioration of historical monuments and other world-famous sites through the process of weathering.
The Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services (IPBES) has revealed that one million species are currently on the brink of extinction primarily by the effects of habitat degradation, changing ecosystems, and pollution. Active absorption of carbon dioxide weakens oceanic pH which impacts a quarter of all sea life and ultimately floods, interrupts supply chains and imperils bio-diversity. This further implies that ecosystem degradation not only causes suffering to wildlife but also reduces human welfare because the resources people depend on such as water, air, and soil are affected.
CO2 reduction implies strong political commitment and formidably entrenched rules and regulations on polluting standards. Nevertheless, there are many parts of the world that lack a good legal framework and enforcement on emissions. According to OpenAQ, as of 2020, 51% of the world's countries, which are those with a population of 1.4 billion people, do not have access to the air quality index even though air pollution is classified as a danger to health by WHO. Internationally, political approaches to tackling the issue are faced with the issue of nationalism and different self-interests and the struggle between development and climate change. Considering the concerned legal system, they require enhancement to uphold elevated emission standards and other sustainability requirements.
However, there is light at the end of this tunnel through technological advancement as technology becomes a key player in combating climate change. In particular, the following measures are particularly important for lowering carbon emissions, and novel renewable energy technologies like solar and wind power. It is worth mentioning that in accordance with the International Renewable Energy Agency (IRENA), these technologies can provide 90 per cent of the necessary reduction up to 2050 of carbon emissions. In addition to that, advances in energy storage technologies, smart grid systems as well as CCS systems serve to assist in the process of transformation to sustainability. Funding research and development is crucial in developing green technologies for such a transformation.
Climate change is multidimensional and cuts across all spheres of human existence, including physical and mental health, the economy, social fabric, environment, politics, and technology. Mitigating the effects of climate change requires a coordinated and systematic process with strong political activism, technological advancement, and enhanced commitment to green activities. Hence, the centre needs to realise the gravity of climate change impacts and come up with strategies to address impacts for a sustainable future.
