Human activities are increasing the concentration of greenhouse gases in the atmosphere. The goal is to keep the temperature below 1.5degC to avoid the worst climate impacts and maintain a livable climate.
The main gases that contribute to global warming are carbon dioxide and methane. These gases are released into the atmosphere due to human activities, such as burning fossil fuels for energy, deforestation, and agriculture. Human activities also contribute to the formation of non-greenhouse gases, including aerosols such as soot. The warming effects of these pollutants vary from those of greenhouse gases, but they are all associated with poor air quality. The amount of these gases in the atmosphere has increased significantly since the Industrial Revolution, and the effects of these activities are still being felt today.
In their latest report, the Intergovernmental Panel on Climate Change (IPCC) concludes that human-induced climate change is more likely than natural climate variations to contribute to the global warming observed since 1951. The report states that natural climate fluctuations contribute to climate variability, but that the overall warming caused by human-induced change is likely to exceed these natural fluctuations in many aspects.
The poorest countries are especially at risk from climate change and need international support to finance adaptation. However, all countries must adapt to cope with the effects of climate change. The United Nations Intergovernmental Panel on Climate Change (IPCC) has outlined the devastating consequences of a warming world. Adaptation should address the risks associated with climate change, extreme weather, and other factors, such as protecting agriculture, managing the impacts of rising seas, and strengthening infrastructure.
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