This website uses cookies to ensure you have the best experience. Learn more

A Study Of Past And Present Climate Conditions

1206 words - 5 pages

Climate is the average weather conditions present in a particular area over a long period of time. Earth’s climate is an intricate system that is essential to our livelihoods. It is for this reason that scientists, such as paleoclimatologist, are hoping to better understand future climate conditions by studying the Earth’s past and present climate conditions.

There are two types of data available to scientist studying past and present climate conditions. The first is instrumental data, which is observed data that can be measured by weather monitoring instruments. Some examples of weather monitoring instruments are thermometers, rain gauges, weather balloons and satellites. The downside to instrumental data is that data is only available for the last 150 years or so. In order to study climate conditions before instrumental data was available, scientists have to use proxy data. Proxy data is data collected from natural recorders of climate variability. Some examples of natural recorders are ice cores, tree rings, corral and ocean and lake sediments. For example, scientist drill deep into ice located in such places as Antarctica and extract ice cores that can contain air bubbles, dust and/or isotopes of oxygen. These components then can be tested to determine the climate conditions at the time the components became frozen in the ice.

According to instrumental data from the last 150 years, the Earth’s average temperature has risen by 0.5⁰C. As you can see in Figure 1 below, during the later half of the 1800’s Earth’s temperature fluctuated from as low as -0.5⁰C to as high as -0.3⁰C. Around 1910, the average temperature began a steady incline until the 1940’s to almost above average temperatures. Beginning in the early 80’s, after 30 years of below average temperatures, the Earth’s temperature began another steady increase to 0.4⁰C above the average base temperature (dataset from 1960-1990).
Figure 1: Global Temperature Record – Phil Jones

(Credit: Climatic Research Unit,

Proxy data has shown in the last 2,000 years, the Earth’s average temperature has been pretty consistent with a few small rises and falls from about 200AD until about 900AD. Figure 2 below, shows that around 900AD, the Earth experienced a small warming period. This warming period, referred to by scientist as the “Medieval Warm Period”, lasted for about 200 years. After another 200 years of pretty consistent temperatures, the Earth experienced what scientist call the “Little Ice Age” from about 1400AD to about 1800AD. As we can see from the instrumental data above, proxy data also confirms a steep incline of the Earth’s temperature in the first half of the 20th century and continuing on into the 21st century. Such accelerated temperature increase is something the Earth had not experienced in the first millennium AD; possibly ever.
Figure 2:
Highly variable Northern Hemisphere temperatures reconstructed from low- and...

Find Another Essay On A Study of Past and Present Climate Conditions

Past and Present Struggles of Asian Americans

1122 words - 4 pages One theme that I found to be very interesting is the struggles that Asian Americans have faced in the past and the present. I never knew about the struggles that have been happening in places like China and Laos. I never realized how many families come from poverty and violence. I have only learned very little about historical events such as Vietnam. I am only now becoming more aware about the human rights problem in China. I am so used to

The Past and Present of Halloween

624 words - 3 pages September or earlier to encourage widespread purchases of various costumes and candies. In other cultures, there are spiritual celebrations that influenced modern American Halloween. Present Halloween has been influenced by spiritual celebrations of other cultures, historical events, and commercialism. Halloween is derived from the Christian holiday All Hallows’ Eve, which is the day before the feast of All Hallows’ Day. This time is dedicated to

Past and Present of Peruvian Cuisine

1338 words - 5 pages Located in South America on the Pacific Coast lies a country named Peru, which offers one of the world’s greatest cuisines. The country of Peru is exquisitely diverse with geography containing the Andes Mountains and highlands, the tropical/Amazon Basin and the coast. All of which contribute significantly to the Peruvian cuisine. Peruvian cuisine is a unique blending of Andean and Spanish cultures over 500 years, mixed with Japanese, Chinese

Past and Present Maps of Afghanistan

1052 words - 4 pages Untitled Andree, Richard. Afghanistan and Baluchistan [map]. 1st Ed. 1:6,000,000. In: The Times atlas. London, England: The Times, 1895. page 83. The Times 1895 atlas contains 117 pages of maps, and comprising 173 maps and an alphabetical index to 130,000 names. This is a atlas map with a simple legend. It is interesting to see a different measurements of length like Russian versts. The elevation is in feet. There is also boundaries

Past, Present, and Future of computers

1749 words - 7 pages logarithms on a system of constant difference and record the results on a metal plate. The machine was aptly named the Difference Engine. Within ten years, the Analytical Engine was produced. This machine could perform several tasks. These tasks would be givin to the machine and could figure out values of almost any algebraic equation. Soon, a silk weaver wanted to make very intricate designs. The designs were stored on punch-cards which could be

Past and Present of CBC Radio

590 words - 3 pages Timeline (summery):The Canadian Broadcasting Corporation took over the CRBC facilities and was created as a Crown Corporation on November 2, 1938, by an Act of Parliament following a Royal Commission that was concerned about the growing American influence in radio.In 1941, the CBC assisted in starting a News Service. There were over 80 stations worldwide that were involved in the project. The News Service linked the stations together, providing

Genocides Past and Present

1756 words - 8 pages Genocides Past and Present Genocide, a dire event, has been recurring time and time again throughout history. In the past, there was the Holocaust, where Hitler exterminated over six million Jews based on his anti-semitic views. Elie Wiesel, a Jewish author, has become a very influential man in educating the world of the true events of the Holocaust due to his involvement in the disaster. Presently, a genocide is occurring in the Darfur region

Japan, Past and Present

1134 words - 5 pages Japan, Past and Present When I think of Japan and its people, I think of geishas, elaborate festivals, and its age old customs. What I’ve come to learn about Japan is that it’s a combination of old tradition but very modern advances. Japan is a modern country that has moved towards democracy and is today one of the strongest economies in the world. And though history plays a major role in Japanese culture, it has truly evolved into a country

Past, Present and Future

1202 words - 5 pages Past, Present and FutureIntroductionThis paper reflects upon my personal and professional growth during my study at the University of Phoenix. I am actively pursuing a degree in marketing. During my journey, I have undergone many personal and professional changes.Part One- PastWhen beginning my journey at the University of Phoenix there was a void in my life and a feeling of disappointment that I had not furthered my education. I had always

Facing past and present

1012 words - 5 pages this novel to any reader. In conclusion, The Kite Runner is a superb novel about the past and present of the narrator and how is past made him who he grew up to be. Khaled Hosseini has a unique writing style in the first person point of view of Amir, which shows the rough rides he goes through, and how he is driven to please his father, which sets the theme of love of father and son, facing the past, and redemption. This novel is a true eye opener. “In the end, the world always wins. That's just the way of things” (Hosseini 99).

Past, Present, and Future

1626 words - 7 pages Running Head: PAST, PRESENT AND FUTURE 6Past, Present and FutureLawrence Collins, Jr.GEN 480July 8, 2013Remona ClarkPast Present and FuturePastEvery student has his or her story. Mine began in the cafeteria where I had worked. A fellow employee was working on his homework during lunch. Being curious, I asked questions. As with my friend, I immediately saw the potential for University of Phoenix (UOP) to help me reach my long-term goals. Two

Similar Essays

A Theatre: Past And Present Essay

1709 words - 7 pages A THETRE: PAST AND PRESENTIn this essay I am going to compare 'The Deadly Theatre', a chapter from the Peter Brook's book 'The Empty Space', with one of the Shakespeare's plays 'The Taming of the Shrew'. My aim is to show how theatre and the influence of theatre have changed over time and establish an audience's role during that process. Also, I am going to mention Shakespeare's influence on the theatre and the methods he used. So, the main

Brixton: A Complex History Of The Past And Present

1446 words - 6 pages physical landscape. What was more interesting was the changes in ethnicity over a century and how that influenced the area to change. Brixton had been a place of significant changes where a community has varied ethnically; from 1890 to the present, we can see a shift from different classes and later on during the 1940's, a rise in immigration from the Caribbean because of the economy after the war. During the second World War, the bombing of

Chinese Immigrants Of The Past And Present

1663 words - 7 pages Chinese immigrants to the United States of America have experienced both setbacks and triumphs in the quest to seek a better life from themselves and their families. First arriving in America in the mid-1800s to seek jobs and escape poor conditions in their home country, the Chinese found work as labors and settled in areas known as Chinatowns (Takaki 181-183). In the early years, these immigrants experienced vast legal racism and sexism as

Examination Of Leadership Theories Past And Present

1447 words - 6 pages , successful as indirect leaders, and direct reports under these leaders were stronger performers (Bateman & Snell, 2007). With all the corruption we have seen in the past, transformational approach principles and practices should be on the forefront of board of directors when hiring chief executive officers. It should be noted that if a leader fails to score high in this area that the likely hood of that leader would not be an asset to the company