The second issue of Food Security is now published, and is free online. It documents some of the multiple causes of food insecurity.
Helium can be found in underground deposits in the earth. Helium can also be found in stars and other planets. The helium underground - and extracted from natural-gas - is a by-product of the natural radioactive decay of uranium, though is far too stable to be radioactive itself. It also occurs in very small amounts in the atmosphere.
Hydrogen is found in many places including in gas planets, stars and in water. Hydrogen is one of the two elements found in water, which is created with two hydrogen atoms that have bonded to one... Hydrogen is found in many places including in gas planets, stars and in water. Hydrogen is one of the two elements found in water, which is created with two hydrogen atoms that have bonded to one oxygen atom.