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warming varied significantly and some places warming exit 2.0 °C and reached up to 3.2 °C. The north western, north eastern, southern and south eastern parts of the country are more susceptible to rising temperature. In 2010, mean annual temperature was 0.84 °C warmer than the base period mean. The significant warmest period was spread across the year 1995-2010, with 2010 being the warmest year. Statistically significant warming was began in early 1990's and the years 1990, 1994 and 1997 identified as important abrupt change points of warming. Moreover, a remarkably northward and north eastward warming was identified, denoting the north, north western and north eastern belts of the country are more susceptible to the warming. Praiseworthy of note, Bangladesh is indeed warming strongly and warming pattern is broadly consistent with the existing global warming.

Development in technology motivates the way of teaching and learning from different view. Electronic learning has become a trend in institutions since usage of Internet is growing high. This study evaluated the effectiveness towards the e-learning usage and acceptance of it among users. Evaluation is necessary to ensure future usability and the acceptance of online learning among users. The web based online learning IDEWL was tested in this study. IDEWL is an enhanced e-learning with interactivity module such as web conferencing which differs from normal video on demand based online learning. Total of 250 students participated in this evaluation through answering the questionnaire distributed. Components that was evaluated consist of interactivity, perceived usefulness, perceived ease of use, intention to use and effectiveness. Data collected was analyzed using SPSS based on TAM approach through hypothesis test. The result indicates that students find e-learning is effective with the enhancement of the inter-activity modules and perceived usefulness as well as perceived ease of use has influenced on each other and seamlessly connected with the effective-ness of the e-learning system.