Environmental concerns are now far and away the most important challenges facing the world today, surpassing all others. New issues and concerns crop up every year as well. Because of this, we are continuously forced to prioritise, determining one environmental catastrophe supersedes another.

1. Biodiversity

At the same time that it provides ecologies with specialisation and diversification, productive fragility and reproductive robustness, biodiversity is the most delicately balanced and crucial component of our global ecosystem. Although it can seem like a simple, all-encompassing description, biodiversity is essentially every organism and every habitat that make up what we typically refer to as 'the environment.' Everything, from the tallest giraffe to the smallest bacterium, is crucial to the upkeep of our planet. 

Therefore, it is evident that any decrease in biodiversity may have far-reaching effects and endanger the very viability of important ecosystems. Biodiversity is being drastically reduced due to factors like global warming, pollution, deforestation, and intensive agriculture. There are or have been billions of extinct species worldwide.

2. Water  

The destruction of our water resources kills both people and marine life, and it puts an enormous financial burden on businesses and governments. The most priceless resource our world has to offer is being harmed by oil spills, dangerous chemical leaks, and an abundance of plastic waste entering our rivers.

Education is the solution. We can work together to undo the harm that people have caused if we grasp the causes and effects of water contamination. In a similar vein, building a strong regulatory infrastructure is essential to implementing good policy across international boundaries.

3. Clearing of trees

Humans require plants to thrive, especially trees, which is a truth that is yet underappreciated. Plants provide humans with food, obviously, but they also produce oxygen, cleanse water, and provide medication.We are currently putting trees under the highest stress. There have been numerous alarms raised that there won't be much of the lucrative forests left if deforestation continues at its current rate. 

For instance, as the world's climate changes, natural wildfires ravage large tracts of woodland in unexpected places and on unprecedented scales. Forests are also disappearing at a startling rate as a result of illicit logging operations and the enormous amount of lumber being cut down for use in construction.

4. Pollutant

We've already highlighted water pollution, but what about the other types of pollution that harm the environment? It's complicated since pollution contributes to a variety of environmental issues, including those we've already highlighted, including climate change and biodiversity. 

Our ecology is being negatively impacted by all seven major categories of pollution: air, water, soil, noise, radioactive, light, and thermal. All forms of pollution and environmental issues are connected to one another and have an impact on one another. To deal with one is to deal with them all. To lessen the negative effects that pollution is having on our environment, our community must work together.

5. Climate Change

Our Earth will suffer significantly from global warming in just 12 years, according to a recent UN assessment, unless 'extraordinary changes' are made in our activities and behaviour. The primary contributor to climate change, greenhouse gases capture the sun's heat and warm the earth's surface.

Given that an increase in the temperature below the ocean's surface can have very negative effects on marine life and ecosystems, this is one of the often-overlooked effects of climate change. Additionally, as our land becomes smaller due to the rise in sea levels, it will become more likely for massive floods and other extreme weather events to occur. The world will suffer if things stay the same, possibly permanently.