The second goal of the United Nations Sustainable Development Goals (SDGs) is »Zero Hunger«. Food security is a key factor in achieving this goal. However, although agricultural techniques and yields have improved worldwide over the last century, food security still cannot be achieved.
Considering the growing world population and the limited availability of scarce resources, the pressure on food supplies has increased immensely. Since 2014, the number of people affected by hunger worldwide has also been slowly rising again. Similtaneously, the availability of arable land is decreasing as a result of the intensification of agriculture - one of the main causes of greenhouse gas emissions and deforestation - and the increase in the global average temperature due to climate change.
Increasing extreme weather events and persistent water scarcity are already threatening reliable crop yields worldwide. The urgent need to combat climate change and move away from fossil fuels has driven the development of renewable energy to such an extent that renewable energy accounted for 26.2 percent of global electricity generation in 2018. This share is expected to rise to 45 percent by 2040. Such a development is of key importance for reducing emissions. However, energy from biomass or solar power will further intensify competition for land use and thus increase the risk of deforestation and food poverty.