A company called Recompose in Washington State is betting that you're biggest end-of-life concern is: "How can I minimize my corpse's environmental impact?" It was a good bet. Washington has become the first state to legalize human composting, allowing you to rot in peace.
The initial promise of agricultural GMOs was to breed better crops more efficiently than we had been doing through techniques like selective breeding, mutagenesis and radiation. These are all relatively clumsy and inefficient. Genetic engineering allows us to do what we have been doing since the dawn of agriculture: improve our crops in a more directed and specific way that only affects a couple of genes. The development of GMOs was never about helping Monsanto sell more Roundup. It was about efficiently engineering crops to be able to grow and flourish on undesirable land, as well as, in many cases, improving their nutritional characteristics.