ABSTRACT: trigger the discharging rate of CO2 in the

ABSTRACT: Bangladesh is a country comprising of six seasons such as summer, rainy,
autumn, late autumn, winter and spring. But we are in danger of losing a few of
them due to the negative consequences of ever increasing global warming. We
have been noticing some unusual seasonal patterns for last few years. The
extent of winter has decreased dramatically. On the other hand, the monsoon is
shifting more and more. In the year 2017, we have experienced unwarranted
rainfall that continued up to late October. In this study, I have tried to assess
the climate change in Bangladesh over the years based on historical data
available. At the same time, I have also analyzed the trends in deforestation,
urbanization and carbon di oxide (CO2) emissions in Bangladesh over
the years. Significant correlations have been found between temperature and
rainfall as well as between deforestation and CO2 emissions. The findings
of the study are important since the pattern of the seasons of Bangladesh determine
its economy as well as entire lifestyle of the people.

KEYWORDS: Rainfall, temperature, deforestation, CO2
emissions, climate change.

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INTRODUCTION

Bangladesh is a
country decorated lavishly by its nature with the contribution of its six
seasons. But the seasonal chain is being disturbed every now and then. The
seasonal pattern of recent years is a proof of that. Winter is getting shorter
and monsoon has been shifting further as well as lasting longer. According to Global
Climate Risk Index (GCRI) 2017 developed by German watch, Bangladesh is ranked
sixth among the disaster-prone countries in the world.

According to Bangladesh
Bureau of Statistics (BBS), the population density for Bangladesh was 976
persons/kilometer2 in 2011. The national urban density was 3785 persons/kilometer2
at the same period. Rapid urbanization is creating adverse impacts on the
environment. More people means more consumption of natural resources including
land and forest and if it continues, it would trigger the discharging rate of CO2
in the atmosphere, affecting the environment.

The ever-increasing
population is causing deforestation. The area covered by natural hill forests
declined from 128630 hectares in 1990 to 79160 hectares in 2015 in Bangladesh
according to Bangladesh Forest Department. Forests engross greenhouse gases
that cause global warming. Deforestation diminishes the accumulation of CO2
in the exterior atmosphere. It also increases the amount of water vapor
in air. Both the issues are related to climate change.

According to Intergovernmental
Panel on Climate Change (IPCC), CO2 emission has been the highest contributor
of global warming so far. IPCC also estimated that about fifty percent of the
CO2 emissions happened in last forty years. Heat being ensnared in
the atmosphere by CO2 increase the average temperature of the earth.
As per World Bank database, CO2 emission per capita in Bangladesh has increased
from 0.2 Metric Ton (MT) in 1995 to 0.4 MT in 2010.