USA 
Global warming is an aspect of climate change causing changes in the average temperatures. Human activities are changing the natural greenhouse on earth. During the last century, the burning of fossil fuels like oil and coal has increased the concentration of atmospheric carbon dioxide (CO2). This is caused by the oil and coal burning process, which is combining carbon with oxygen in the air to create CO2. Lastly, the clearing of land for industry, agriculture and more human activities has increased concentrations of greenhouse gases.
Our keynote speakers address the causes of global warming, including climate change, in interesting and thought-provoking keynotes. The effects of global warming are real. The consequences of changes in the atmospheric greenhouse can be difficult to predict. However, scientists estimate that some effects seem likely to cause warmer temperatures.
On average, the earth is becoming warmer, but it may not be the same result in all regions. The warmer conditions can cause more precipitation and evaporation overall, yet individual regions will vary. Some may become dryer and others wetter. In addition, the oceans will become warmer, and the ice will melt partially, including glaciers.This will cause increasing sea levels. If it warms, ocean water will expand contributing further to sea level rise. In the meantime, crops and other plants may respond positively to increased atmospheric CO2 growing and making use of water more efficiently. Concurrent, shifting climate patterns and higher temperatures can change the areas where crops grow and affect the natural plant communities.
What exactly causes global warming is an ongoing discussion, especially to what extent human behaviour plays a role and to what extent global warming might primarily be the result of natural causes. Our talented keynote speakers on global warming take a closer look at the many facts, causes and effects being discussed relating to this topic.