How can human activities, such as deforestation and burning fossil fuels, exacerbate the Greenhouse Effect?
Human activities such as deforestation and burning fossil fuels exacerbate the greenhouse effect through the release of large amounts of greenhouse gases into the atmosphere. Deforestation leads to reduced absorption of carbon dioxide (CO2) by forests, which are major carbon sinks. As trees are cut down, there is a loss of CO2 storage capacity, and the carbon stored in trees is released back into the atmosphere during deforestation and when the logged wood is burned or decomposes.
Burning fossil fuels like coal, oil, and natural gas releases significant quantities of CO2 that have been trapped underground for millions of years. Additionally, these activities also emit other greenhouse gases such as methane (CH4) and nitrous oxide (N2O). Methane is released during the extraction and transport of fossil fuels, while nitrous oxide is produced through various agricultural practices.
The long-term effect of these emissions is an increase in the concentration of greenhouse gases in the Earth’s atmosphere. Greenhouse gases trap heat from the sun within the atmosphere, creating a warming effect known as the greenhouse effect. As concentrations of greenhouse gases rise due to human activities, more heat is trapped in the atmosphere than would occur naturally. This results in global warming and a range of climate change impacts such as rising temperatures, altered precipitation patterns, sea level rise, increased frequency/intensity of extreme weather events, and disruption to ecosystems.
In summary, deforestation reduces carbon dioxide absorption capabilities while releasing stored carbon back into the atmosphere as trees are cut down or burned. Burning fossil fuels emits large quantities of CO2 along with other greenhouse gases like methane and nitrous oxide. These human activities contribute to an enhanced greenhouse effect by increasing concentrations of these gases in the atmosphere, leading to global warming and associated climate changes on Earth.