Oh and just to keep the scapegoats straight, let’s not overlook our global heat and moisture distribution engine.
I wonder if “believer” believes in climate science, since that’s also a big, big part of the looming shadow of hunger than hangs over our country and the entire planet.
https://www.soils.org/files/science-policy/caucus/briefings/climate-change.pdf
Agriculture and climate change are inextricably linked—crop yield, biodiversity, and water use, as well as soil health are directly affected by a changing climate.
Climate change, which is largely a result of burning fossil fuels, is already affecting the Earth’s temperature, precipitation, and hydrological cycles. Continued changes in the frequency and intensity of precipitation, heat waves, and other extreme events are likely, all which will impact agricultural production. Furthermore, compounded climate factors can decrease plant productivity, resulting in price increases for many important agricultural crops.
Published: 27 June 2019
Impact of climate change on agriculture production and its sustainable solutions
Naveen Kumar Arora
Environmental Sustainability volume 2, pages95–96(2019) Cite this article
link _ springer _ com/article/10.1007/s42398-019-00078-w
Climate change is one of the most defining concerns of today’s world and has greatly reshaped or in process of altering earth’s ecosystems. Although climate change has been a constant process on earth, but in recent times, approximately last 100 years or so, the pace of this variation has increased manifolds. Due to the anthropogenic activities the average temperature has risen by 0.9 °C since nineteenth century, mainly due to greenhouse gas (GHG) emissions in the atmosphere. As per estimates this rise is expected to be 1.5 °C by 2050 or may be even more, the way deforestation is occurring, GHG emission is increasing and soil, water bodies and air are being polluted. The unprecedented hike in temperature has resulted in increased events of droughts, floods, irregular patterns of precipitation, heat waves and other extreme happenings throughout the globe. As per the annual report of Weather, Climate and Catastrophe Insight, natural disasters alone have caused economic loses in tune of USD 225 billion across the world in 2018 and since 2016 the losses due to natural calamities have crossed USD 200 billion per year. About 95% of these losses are attributed to weather related incidences, of which cyclones, floods and droughts are the key players and are directly related to climate change. Altogether, the impact of climate change is very comprehensive but its far reaching effects are now clearly visible on agricultural sector, on which relies the food production and economy of the world. It is also worth noting that world population is expected to reach 9.7 billion by 2050 which would magnify the pressure on agricultural lands to meet the growing food demands already affected by the impact of climate change. As climate change and agriculture have inextricable links, abrupt changes in climatic conditions at such a rapid pace has threatened the food security at global scale. World Food Programme (WFP) report of 2018 revealed that increase in crop yield per hectare is significantly slower as compared to rates of rising population. As per Food and Agriculture Organization (FAO) data published in 2016, if the current situation of GHG emissions and climate change continue then by the year 2100 there will be decline in the production of major cereal crops (20–45% in maize yields, 5–50% in wheat and 20–30% in rice). Hence if the trends continue, in very near future crop losses may increase at an unprecedented rate which will substantially contribute to reduced production, spiked food prices, and it will become difficult to cope up with rising needs of growing population.
Tanja Folnovic - Agronomy Expert
blog _ agrivi _ com/post/climate-change-impacts-on-agriculture
Climate change and agriculture are interrelated processes, both of which take place on a global scale. Climate change affects farming in a number of ways, including through changes in average temperatures, rainfall, and climate extremes (e.g. heat waves), changes in pests and diseases, changes in atmospheric carbon dioxide and ground-level ozone concentrations, changes in the nutritional quality of some foods and changes in sea level.
Climate change is already affecting agriculture, with effects unevenly distributed across the world. Future climate change will likely negatively affect crop production in low latitude countries, while effects in northern latitudes may be positive or negative. Climate change will probably increase the risk of food insecurity for some vulnerable groups, such as the poor. For example, South America may lose 1–21% of its arable land area, Africa 1–18%, Europe 11–17%, and India 20–40%
www _ ers.usda _ gov/topics/natural-resources-environment/climate-change/
Overview
ERS conducts research on a range of climate change issues related to agriculture, including:
The impacts of climate change on crop and livestock production
The implications of climate change for agricultural markets and the cost of government policies/programs
The international land use implications of bioenergy and food production
The potential for agriculture to adapt to changing climate conditions
The potential within agriculture for mitigation of greenhouse gas emissions
The role of USDA farm programs under changing climate conditions
Drought resilience and risk management
See the sidebar links to ERS climate-related publications; selected publications are highlighted below.