What is climate change?

Climate change is one of the most significant environmental problems of our time, and it has a wide impact on both natural ecosystems and people’s living conditions. Climate change refers to long-term changes in the earth’s climate, especially in temperatures, rainfall and weather phenomena. This article discusses the causes, consequences and possible solutions of climate change.

Causes of climate change

There are several factors behind climate change, the most significant of which are greenhouse gas emissions caused by human activity. These emissions are caused especially by the burning of fossil fuels such as oil, coal and natural gas. Greenhouse gases such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) accumulate in the atmosphere and prevent heat from escaping into space, leading to global warming.

Consequences of climate change

Climate change has many serious consequences that affect both the environment and people. These consequences include:

  • Glacier melting: Global warming causes glaciers and polar ice caps to melt, which leads to sea level rise.
  • Extreme weather events: Climate change will increase the occurrence and intensity of extreme weather events such as hurricanes, floods and droughts.
  • Changes in ecosystems: Many animal and plant species have to adapt to changing conditions, which can lead to species extinction.
  • Effects on human health: Climate change can increase health risks, such as heat strokes, respiratory diseases and the spread of infectious diseases.

Solutions to combat climate change

Combating climate change requires large-scale and versatile actions. These actions include:

  1. Use of renewable energy: Switching from fossil fuels to renewable energy sources such as solar, wind and hydropower is a key way to reduce greenhouse gas emissions.
  2. Improving energy efficiency: Increasing energy efficiency in buildings, industry and transport can significantly reduce energy consumption and emissions.
  3. Protection and restoration of forests: Forests act as carbon sinks that bind carbon dioxide from the atmosphere. Protection and restoration of forests are important measures to curb climate change.
  4. Sustainable lifestyles: It is important for individuals and communities to adopt sustainable lifestyles, such as reducing energy consumption, favoring public transport and reducing the amount of waste.

Combating climate change is a common challenge that requires international cooperation and commitment. With their own choices and actions, everyone can influence climate change mitigation and building a sustainable future.

Read more about climate change and combating it from the following sources:
IPCC (Intergovernmental Panel on Climate Change)
Ilmasto.org
Ympäristö.fi – Climate change