The global climate change and its consequences are leaving a bad impact on the countries to face poverty and hotter temperatures. Climate change impacts include temperature rise, greenhouse and carbon dioxide gas emissions, erratic rainfall, salinity intrusion, the rise of floods, cyclones, storm surges and draught, ice sheets melting which will seriously affect the agriculture, and the world. Researchers agree that climate change is a fact.Temperatures have been increasing
Rainfall decreases severely causing a fall in food production therefore a loss of some species. However if rainfall increases it can cause the spread of diseases amongst plants, humans and animals through. Flood washes away biodiversity, submerge it and even kill it, similarly draught causes the death of species as there is low rainfall and scarcity of food. Furthermore climate can alter PH levels in rivers, dams and more specifically in oceans and on land. Therefore favorable living conditions are changed to unbearable conditions thus increasing pollution both on land and water.
Climate change will not only affect the production of agricultural commodities but also disturbs the economic steadiness affecting the supply and demand balance of agriculture commodities, profitability, trade and prices of these commodities (Kaiser and Drennen, 1993). This evidence shows that climate change will affect the crop production directly. Pakistan being an agro-based country as 47% of people rely on agriculture not only for employment, but also for food. Since agriculture sector contributes to 24% to the GDP of Pakistan is highly affected by the changes in temperature rising and rainfalls. A rise by 3 degrees by 2040 and up to 5-6 degrees is forecast in temperature by the end of the century.
climate and ozone pollution affects highly in agricultural. a warming world will increase the amount of desert in the world, increase drought in areas such as North America, Africa and Australia, and may exacerbate problems such as flooding in Indonesia and South America .Secondly War and displacement is an important factor in our current days. Fighting forces millions of people to leave their homes, leading to hunger as the displaced find themselves without the means to feed themselves. The conflict in Syria is a recent example, In war, food sometimes becomes a weapon. Soldiers will starve opponents into submission by seizing or destroying food and livestock and systematically wrecking local markets.
Abiotic stress or environmental stresses such as drought, salinity, high temperature, cold etc. affect adversely on plant growth and yield. One of the major serious abiotic stress is salinity stress causing serious decline in yield and production of different plant species worldwide (Sadak & Dawood, 2014). Saline water as seawater was previously considered unsuitable for plant irrigation but recently, this water successfully could be used as irrigation water under certain conditions (Zeid, 2011). Salinity stress causes many changes in different metabolic and biochemical processes in plant cells this depends on the severity and duration of stress, finally caused decline in production in different crops.
They are left with many uncertainties of life die to destruction of natural resources. These have clearly resulted because of no rain. Deforestation and less care of the nature has led to a whole village of farmers suffering even for their meals. There is a saying if you have your meals one time then thanks the farmers but the farmers are worried for their food. If this would continue, food insecurity and debt cannot be assisted
The impact would be notably severe in tropical areas thatchiefly consist of developing countries like Pakistan. In Pakistan, Climate change raises issues with its tremendous social, environmental and economic impacts. Pakistan is often exposed to natural hazards like floods, cyclones and droughts. These hazards once combined with the vulnerabilities in the form of poorness, exclusion and inappropriate political choices and actions, make individuals liable to the impacts of hazards. The agricultural sector is most prone to Climate change and changes in cropping and productivity, as results of
Consequently, agricultural productions were affected when the dam shutdowns farm irrigation after it reached 179.67 meters bringing about the loss of crops additional operational cost. It does not end there because as the heat index amid this season hit 32°C to 41°C, the heat exhaustion can already cause heat stroke and heat cramps that can prompt to sudden death especially to elderly