TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Catalyst: The catalyst (C1) is oxygen and at least one of Mg, Ca, Sr, Ba, Ti, Y, Lu, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Fe, Co, Ni, Cu, Zn, Al, Ga, In, Tl, Si, Ge, Sn, Sb, Bi, Se, Te, Pb, La, Ce, Pr, Th, Nd, Pm, U, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb (preferably cerium (IV) oxide and/or tellurium (IV) oxide. The zeolite catalyst is silico-alumino-phosphate zeolite or aluminosilicate zeolite. The catalyst (C3) is palladium salt, copper salt or nickel salt.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The process further involves initially converting carbon dioxide obtained from a natural source or from an artificial chemical source to produce formic acid, to reduce the carbon dioxide present in nature or divert the carbon dioxide from discharging into the environment by artificial chemical source. Formic acid is reacted with hydrogen in the presence of a catalyst (C1) at 8-350 (preferably 8-300, more preferably 40-200, most preferably 60-100) degrees C to form formaldehyde. The process further involves reacting formaldehyde in the presence of Ca(OH)2 to produce formose sugars (preferably C5 and C6 sugars) at 50-70 degrees C; removing calcium from the sugar solution by bubbling carbon dioxide through the sugar solution to produce a sugar solution free from calcium and having pH 4-7. The formose sugars are further converted to paraffins and/or olefins (preferably ethane, propane, ethylene, propylene and/or butane, preferably propylene) in presence of a catalyst zeolite. The process further involves an acid-converting step where formic acid is reacted with an unsaturated hydrocarbon (preferably acetylene, methylacetylene) to form an organic acid containing at least 3 carbons (preferably (meth)acrylic acid) in presence of a mixture (M1) comprising a phosphine ligand, a strong acid, and a catalyst (C3) at 50-350 degrees C. Formic acid contacts with an acid catalyst before introducing into a vessel containing the mixture (M1). The temperature (at least 100, preferably at least 130 degrees C) of the acid catalyst is different than the temperature of the mixture (M1). Formic acid is converted to carbon monoxide and/or hydrogen in two parallel reactors having temperatures independently controllable, one of the reactor containing a metallic catalyst capable of yielding hydrogen and the other reactor containing a catalyst comprising an oxide, an acid and/or a base to yield carbon monoxide, and mixing hydrogen and carbon monoxide to yield syngas. EXAMPLE - No suitable example is given.