Understanding Climate Change and the Greenhouse Effect
Climate change is a significant global issue caused by the negative impact of greenhouse gases on climate change. This page explains the greenhouse effect, its causes, and the consequences of climate change.
The greenhouse effect is a natural process that keeps Earth warm enough to support life. It involves three key greenhouse gases:
Vocabulary: Greenhouse gases
- Carbon dioxide CO2
- Methane CH4
- Water vapor H2O
The greenhouse effect occurs in three stages:
- The Sun emits short-wavelength radiation, providing heat to Earth.
- Earth absorbs this radiation and emits long-wavelength radiation, releasing heat.
- Greenhouse gases absorb the outgoing long-wavelength radiation and re-emit it in all directions, including back to Earth.
Highlight: Human activities are significantly contributing to increased greenhouse gas emissions, exacerbating the greenhouse effect and causing climate change.
Human activities contributing to greenhouse gas emissions include:
- Burning fossil fuels increasesCO2
- Deforestation reducesCO2absorption
- Animal farming increasesCH4throughdigestion
- Landfill decomposition bacteriaproduceCH4
These activities are causes of greenhouse effect intensification, leading to climate change.
The consequences of climate change are far-reaching and include:
Example: 10 effects of climate change
- Rising sea levels, causing flooding
- Altered rain patterns, resulting in more or less rainfall
- Food production problems
- More frequent and intense storms
- Temperature stress on organisms
- Water stress on organisms
- Changes in wildlife distribution
- Habitat alterations
- Long-term shifts in global climate patterns
- Increase in average global temperature
Definition: Climate change refers to a long-term shift in global climate patterns, primarily characterized by an increase in the average global temperature.
It's important to note that while human activities are the primary driver of current climate change, natural factors can also contribute, such as:
- Changes in solar radiation
- Tectonic plate movements
- Volcanic eruptions
Understanding these processes and their impacts is crucial for addressing the challenges posed by climate change and developing effective mitigation strategies.
