Notes

Climate change can have direct and indirect effects on human health. Increased temperatures, extreme weather events, and changes in disease patterns can affect the spread of infectious diseases, cause heat-related illnesses, and lead to food and water shortages, all of which pose risks to human well-being.
Climate change leads to various environmental problems, including more frequent and severe weather events (such as hurricanes, droughts, and floods), rising sea levels, and disruptions to ecosystems. These changes can result in loss of biodiversity, damage to ecosystems, and the extinction of species.
it also disproportionately affects vulnerable populations, exacerbating existing social inequalities. Low-income communities, marginalized groups, and developing countries often bear the brunt of the impacts, facing challenges such as food insecurity, displacement, and limited access to resources.
Increased levels of carbon dioxide in the atmosphere not only contribute to global warming but also lead to ocean acidification. This poses a serious threat to marine life, particularly organisms with calcium carbonate shells or skeletons, such as corals and mollusks.
The effects of climate change are often irreversible and have long-term consequences. Once certain thresholds are crossed, such as the melting of polar ice caps, it becomes challenging to undo the damage, leading to sustained changes in the climate system.

Some say that the Earth's temperature has always changed and that the current warming trend is simply a natural element of climate variability. They argue that it would be oversimplified to link recent changes in climate to human activity.
While it's true that the Earth's climate has undergone natural variations over geological time scales, the current warming trend is unprecedented in its rapidity and is inconsistent with known natural climate cycles. The overwhelming consensus among climate scientists is that the observed increase in global temperatures is primarily due to human activities, especially the release of greenhouse gases such as carbon dioxide from the burning of fossil fuels.

Scientific evidence, including extensive climate modeling and the analysis of temperature records, points to a clear correlation between the increase in greenhouse gas concentrations and the rise in global temperatures over the last century. Natural factors alone cannot explain the observed changes, and the Intergovernmental Panel on Climate Change (IPCC) and other scientific bodies have emphasized the significant role of human activities in driving current climate trends.

It's important to critically evaluate information and consider the weight of scientific evidence when engaging in discussions about climate change. While there may be different perspectives, the overwhelming consensus among climate scientists supports the idea that human activities are a major contributor to the observed changes in the Earth's climate.