Environmental Hazards – Nature Observer

Sleeping Viruses: What Might Awaken as Permafrost Thaws

As global temperatures rise, scientists are increasingly concerned about the thawing of permafrost, the permanently frozen ground found in Arctic and subarctic regions. For thousands of years, permafrost has acted…

DeKa March 5, 2026

Climate Crisis Environmental Hazards

Sea-Level Rise: Which Cities and Countries Are at Risk?

Rising sea levels are one of the most visible and measurable consequences of global climate change. As global temperatures increase, glaciers and ice sheets melt, while seawater expands due to…

DeKa March 3, 2026

Climate Crisis Environmental Hazards

Global Climate Risk Index: Which Countries Are Most Vulnerable?

The Global Climate Risk Index (CRI) is an analytical tool that evaluates how countries are affected by extreme weather events such as storms, floods, heatwaves, and droughts. Rather than predicting…

DeKa March 3, 2026

Climate Crisis Environmental Hazards

What Is a Climate Tipping Point — and Have We Already Passed It?

The term climate tipping point refers to a critical threshold in the Earth’s climate system beyond which changes become self-reinforcing and potentially irreversible on human timescales. Unlike gradual warming trends,…

DeKa February 28, 2026

Climate Crisis Environmental Hazards

Changes in Precipitation Patterns: Where Will It Become Drier and Where Wetter?

Climate change affects not only temperature but also the global water cycle. As the atmosphere warms, it can hold more moisture, altering rainfall distribution across regions. This shift does not…

DeKa February 28, 2026

Climate Crisis Environmental Hazards

Climate Skepticism: Who Questions Climate Change and Why?

Climate change is one of the most widely studied scientific issues of the modern era, yet public opinion remains divided in some regions. While the overwhelming majority of climate scientists…

DeKa February 28, 2026

Be smart Climate Crisis

How Ocean Warming Affects the Global Climate

The world’s oceans absorb more than 90% of the excess heat trapped by greenhouse gases, making them a central regulator of Earth’s climate system. As global temperatures rise, ocean waters…

DeKa February 27, 2026

Climate Crisis Ecology

Ocean Acidification: Why Are the Oceans Becoming More Acidic and What Does It Threaten?

The world’s oceans absorb a significant portion of the carbon dioxide released into the atmosphere. While this process slows the pace of atmospheric warming, it triggers a chemical reaction in…

DeKa February 18, 2026

Climate Crisis Environmental Hazards

Extreme Heat and Heatwaves: The New Normal?

In recent years, extreme heat events have become more frequent, longer-lasting, and more intense across many regions of the world. Heatwaves that were once considered rare are now occurring with…

DeKa February 18, 2026

Climate Crisis Environmental Hazards

Climate Change in the Arctic: Why Is It Happening 2–3 Times Faster?

The Arctic is warming significantly faster than the rest of the planet, a phenomenon known as Arctic amplification. While global average temperatures continue to rise steadily, Arctic regions experience increases…

DeKa February 18, 2026