Day 8: Climate Changes (Out Line)

-Through out the years of human history man has evolved to make things easier for them to live in lugsery. Different source of powers have been found in time to get to where we are today. But the advancment of todays technologies is a double edge sword. For us to live in a easy life we are destoring our own world. The "Greenhouse Effect" is one the possiblity of how the world would come to an end. Natural events in the world maybe also causing this event to occur, volcanoes are one of those contributions. But the amount of contributions by human out do the volcanoes by times 100. The world may come to an end but we can't stop the enidble so we need to live our lives through the fullest.

--Greenhouse Effect
Scientific evidence:
The temperature data for 1998 were staggering. Data collected by NOAA (United States National Oceanic and Atmospheric Administration) indicated that 1998 was by far the warmest year up to that year. Global mean surface temperature in 1998 was 0.66°C (1.20°F) above the long-term (1880-1997) average value of 13.8°C (56.9°F). It is possible for a year to be the warmest on record and yet none of the months to be the warmest on record. However, for nine of the 12 months of 1998 the global average temperature exceeded the monthly records for all previously recorded years. In other words there had never been a warmer January, February, March, April, May, June, July, August or October than in 1998, since temperature data have been recorded,. In addition, it is worth noting that the previous monthly records had all been reached between 1988 and 1997.

Throughout 1998 there were continuous reports about severe weather occurring around the world as a result of El Niño, a phenomenon that has been observed for hundreds of years. However, the frequency and intensity of El Niño events are apparently increasing. El Niño events used to be observed every five to seven years. Now they seem to be occurring every three to five years. There is no clear link between these and a host of other, recent relatively short-term climatic events and the amount of greenhouse gases humans have been releasing to the atmosphere in the past 150 years. However, climatic events, unprecedented in the human experience, have been occurring in recent times and the direct cause-effect link may not be evident before it is too late. So, in the face of uncertainty, do we hesitate to act? Or in the face of uncertainty, in light of the potential outcomes, do we act?



INFLUENCE ON THE GREENHOUSE EFFECT:
Volcanic eruptions can enhance global warming by adding CO2 to the atmosphere. However, a far greater amount of CO2 is contributed to the atmosphere by human activities each year than by volcanic eruptions. Volcanoes contribute about 110 million tons/year, whereas other sources contribute about 10 billion tons/year. The small amount of global warming caused by eruption-generated greenhouse gases is offset by the far greater amount of global cooling caused by eruption-generated particles in the stratosphere (the haze effect). Greenhouse warming of the earth has been particularly evident since 1980. Without the cooling influence of such eruptions as El Chichon (1982) and Mt. Pinatubo (1991), described below, greenhouse warming would have been more pronounced.

---The "Greenhouse Effect" is an enedible event to place and destory us all. The is caused by both nature and man. But it will happen no matter what but that dosen't mean we can't stop living our lives to have has many happy memory as possible.