AGU statement and impressions about it Essay Example | Topics and Well Written Essays - 500 words

AGU statement and impressions about it - Essay Example The Earth’s population has been growing consistently over time, and this has therefore resulted to the increase in human activities causing climate change. These human activities could include factors such as emission of carbon dioxide (CO2), methane, chlorofluorocarbons (CFCs), nitrogen, and changes in the use of land and land cover among others. These human activities influence climatic changes and it is therefore beyond doubt that they will always continue to be of great concern in the future. In addition to the human-caused climatic changes, other natural activities have also led to the alteration of the climatic conditions. However, the relative role that these natural or human activities play towards altering the ocean circulation features and the atmospheric conditions still remains uncertain. The AGU statement points out that â€Å"climate models have predicted the rise in global temperatures† due to gas emissions (2000). However, quite unfortunately, the Climate models are usually incapable of providing skillful likelihoods of the climatic changes. For this reason, the AGU’s statement is quite misleading when it identifies that factors such as increased amounts of high temperature, experience of high water in the coastal regions, and precipitation, which are harmful to the society, are projected to increase. In addition, the summer arctic sea ice extent, has significantly been wrongfully predicted by the statement, whereas the concept of the increase in the summer Antarctic sea ice extent, has also been neglected by the AGU statement. In addition, the specific attribution of adverse weather conditions as a result of over-time climatic changes is yet to be shown and it could even be more likely impossible that it would be shown. Unfortunately, This Statemen t does not adequately give a clear summary of issues affecting the changes in climatic conditions, and therefore, the statement does not represent an effective policy framework that

Warren Buffet Essay Example | Topics and Well Written Essays - 500 words

Warren Buffet - Essay Example The active management always attempts to select attractive areas of investment. They decide the ripe time to join and enter markets, sectors, and places of leverage in the market. Their point is to make profits, and always aspire to do more than they could be doing. Passive management of investments does not make an attempt to differentiate between unattractive and attractive securities, or keep tabs on the markets. They invest in wide sectors that are called indexes. The aim is also to make profits (Bernstein 2001). But due to the nature of the market they accept average returns. They actually diversify their investments. Active management of shares is quite appealing on paper. But it is substantially costly and surrounded by decreasing returns when compared to passive investment. Given the unpredictability of markets and economies, it is better to diversify the risks rather than put one’s investment in one company or market. Some people can make accurate predictions on investment returns, but this may not always be the case. If the predictions are right, the returns are also abundant. In case of a misjudgment, the losses incurred could be quite severe. The future security prices are equally unpredictable. As a result, it is difficult to predict their future. On the basis of this, a passive investor who spreads the risk is better taken care of. If one can predict rightly, then the returns are always good. The risks and returns are basically correlated. This is the major positive side of active investing. The high potential returns are always risky to venture in. A risk in investment is the potential to lose on the investment. Passive investment spreads the risks by diversifying the investment areas, hence a reduced risk overly. Active management is by a great deal more expensive than passive one. Active investors must incur costs in order to match the