“The Earth is what we all have in common.”

Environmental Health refers to the branch of public health which deals with the factors of environmental degradation which affect human health and cause diseases. Some of these factors which lead to environmental degradation are global warming, different types of pollution, climate change among others. 


The concept of Environmental Health is to prevent injury of humans, animals and other living creatures as a cause of environmental degradation. It focuses on promoting well being on the planet Earth. 


The basic tenet of Environmental Health is to recognise the environmental factors which affect human health. The second tenet is to provide solutions to these factors and the third tenet is to implement the solution so that henceforth impact can be prevented.




A climate change often leads to rise in temperatures, melting of glaciers, seasonal shifts etc. All these things are quite common and known by all of us. But, do you know that even the environment could be the reason behind increasing death


1. Environmental factors such as air, water, and soil pollution are the reason behind the death of one out of every four people.

2.Climate change is majorly impacting clean air, safe drinking water, safe shelter and food supply etc. which are essential for human survival.

3. According to a recent estimate between 2030 and 2050, climate change is expected to kill nearly 2.5 lakh people every year from heat stress, malaria,malnutrition, and diarrhea.

4. The major developing countries with a high population rate would be
greatly affected by this epidemic.

5. According to World Health Organization, indoor air pollution (arises from cooking fires in primitive households) alone could contribute to nearly 2 million deaths annually.



The change in climate due to human activities has many adverse effects and also in human health. There are many health impacts;

1.Extreme high temperature due to global warming results in cardiovascular and respiratory disorders.

2.Due to climate change, rainfall in variable patterns which affect the supply of fresh water. Variation in temperature like rise and fall in temperature and variable precipitation pattern are likely to affect the production of food hence causes malnutrition

3.Extreme weather leads to change in vector ecology which causes increase in water borne diseases like malaria, dengue, encephalitis, hantavirus, chikungunya, rift valley fever and many more.

4.The increase in harmful gases in air causes respiratory disorders and asthma like disease.

5.Melting of glaciers results in increase level of sea water which is affecting the coastal life of people in many ways.


World environment health day is celebrated every year on 26th September. The reason for its celebration is to spread awareness and highlight the important work related to environmental health around the world.

The theme for the year 2021 is ‘prioritizing environmental health for healthier communities in global recovery’



• This day was launched by IFEH i.e., the international federation of environmental health council at its meeting in Indonesia on 26th September

• The main cause behind awareness was the data released by WHO (world health organization) in 2020, stating 24% of deaths were due toenvironment related issues.

• It is further estimated that between 2030 and 2050, climate change is expected to kill nearly 2.5 lakh people every year.

• Environmental pollution whether it is air, water, or soil, is the reason behind the death of 1 out of every 4 people on the planet.