However, the impacts of human activities have led to abnormal fluctuations of these parameters against the background values. Some of the prominent evidence of climate change includes the increase of global mean surface air temperatures over the land and oceans, the remarkable increase of atmospheric CO2 concentrations globally and ocean acidification. In this report, the mitigation
The changing concentration of greenhouse gases in the atmosphere along with solar radiation and the change in land cover change the energy balance in the climatic system of earth and this drives climate change (Baker et al., 2007:37). 3. Impacts of climate change The change in global climate has been accepted as an emerging driver of environmental change in many parts of the world (Thapa et al., 2016:345; Reuss, 2015:36). Climate change can cause the degradation and loss of biodiversity and the decrease of ecosystem productivity which in turn lead to severe consequences on forest and human welfare (Thapa et al., 2016:345; Sango & Godwell, 2015:1; Boehlert et al., 2015:1326; Seely et al., 2015:1). In southern Africa warmer temperature and a decrease in precipitation have been observed (Sango & Godwell, 2015:1).
Deserts are one of the most affected ecosystems by climate change. Most desert are likely to become more extreme due to the foreseen climate change, and any solutions will depend largely on the human management (Noble & Gitay, 1996). Deserts and semi-deserts are predicted to be one of the most responsive of the world’s ecosystem types under the current increase of carbon dioxide (CO2) in the atmosphere and related global climatic changes (Lioubimtseva, Elena, & Adams, 2004). According to many environmental models used for climate change forecasting, the climate change has a wide range of direct and indirect impacts on humans, animals, vegetation, and even sometimes on the future behavior of the climate change itself. However, in the spite of
As a result of human activities, the environment is in many ways, degradation, and global warming will accelerate these degradation. (1) because of the high temperature melting glaciers, water thermal expansion, causing the sea level to rise. Sea level rise will be a serious threat to coastal areas, may inundate low-lying coastal areas, serious impact on human activities. (2) climate change caused by global warming will lead to great changes in water supply in many places, the availability of fresh water will be greatly changed. The temperature increase means down to the water will be evaporated, if there is more rainfall to supplement evaporation, is not What impact.
Secondly, the water from melting glaciers and the ice sheets of Greenland and the Antarctica would also add water to the ocean which cause negative consequences to human and other habitat. The Earth's average sea level was predicted to be increase by 0.09 to 0.88 m between 1990 and 2100. Besides, one of the impact of greenhouse effects is ocean acidification. The oceans provide extraordinary ecosystem services to societies, food, regulation services (carbon absorption), cultural and recreation as well as nutrient
The concept of climate change may be one of the greatest threats to our modern day life and the future of our planet. Climate singlehandedly is able to impact natural resources, vegetation, and human impacts on an area which and effectively destroy the functionality of an ecosystem. Many climate change deniers use the formal definition of climate to support the idea that climate change and global warming does not exist - they believe that climate is simply the natural changes in weather over time. However, the change we have been witnessing over the past decade is anything but naturally occurring. There is an overwhelming consensus in the scientific community of its existence and us as a species can no longer deny it while sweeping it under
Climate change has been occurring over the decades but it is just getting worse and more greenhouse gases are getting trapped in the atmosphere and trapping heat energy from the sun along with it. If humans are so small and can create a mess so big we can clean it up too because it is evident that humans have caused an increase in chemicals and pollution that has altered the chemical composition of the atmosphere which ultimately causes the climate change we see
Population and Climate Change Climate change is the most highly influential topic in 21st century. It is now considered as a global phenomenon, which significantly impacts on human life. From the early beginnings of humans, we had changed the natural rule in many ways: by hunting, gathering and taming the wild animals… At first, the change of nature brought many practical benefits for the development of human beings. Over the years, people has gradually affected this beautiful planet, including its climate. Humans risk upsetting the ecological balance of the Earth as well as the change of regional climate.
The signs that climate change affects our one and only earth clearly show up in the oceans and atmosphere. A place where climate change is most notable is in the sea levels. Over the past years sea level has risen so much that it has caused damage to ecosystems. “Sea level rise is caused primarily by two factors, related to global warming: the added water from melting ice sheets and glaciers and the expansion of sea water as it warms”(Understanding, 2016). This is concerning because the areas living near or below sea level can one day, in the near future, be underwater.
According to African Development Bank (2002), increase in droughts, floods and other extreme events would add to stress on water resources, food security, human health and infrastructure and constrain development on the African continent as a result of climate change and variability. Countries in sub-Saharan Africa are likely to be the worst hits of the devastating impacts of climate change due to their geographical location, low incomes, low technological and institutional capacity to adapt to rapid changes in the environment, as well as their greater reliance on climate-sensitive renewable natural resources sectors such as water and agriculture. Also factors such as desertification, water stress, prevalence climate related diseases, reliance on rain-fed agriculture as well as rapid population growth make African societies more vulnerable to the consequences of climate change (IPCC, 2001). The effects are therefore likely to vary among different populations hence its impact on livelihood is critical for the survival populations whose vulnerability can be exacerbated by existing social inequalities. Women and men are expected to experience the impact of climate change differently due to existing gender inequalities in access and control of resources and decision-making (Brody, Demetriades &