Add punctuation: To make this happen science demands limiting carbon dioxide to a maximum of 450 ppm CO2e or 350 ppm of CO2 alone
A: To make this happen, science demands limiting carbon dioxide to a maximum of 450 ppm CO2e, or 350 ppm of CO2 alone.

Add punctuation: This meant the disruption of Field Marshal Alexanders Allied force in Italy which after the capture of Rome had become a tremendous fightingmachine with horizons unlimited General Clark halting the advance
A: This meant the disruption of Field Marshal Alexander's Allied force in Italy (which after the capture of Rome had become "a tremendous fighting-machine . . with horizons unlimited"; General Clark), halting the advance

Add punctuation: Say goodbye to poor acne say goodbye to guy boobs say goodbye to dangerous or unpleasant adverse effects only pure stamina and massive muscle mass packs in the shortest time you could picture Dbal Max appropriates for being taken by women and gents alike during bulking cycles just as high as during cutting cycles making the same extraordinary outcomes possible for exercise enthusiasts of either sex
A:
Say goodbye to poor acne, say goodbye to guy boobs, say goodbye to dangerous or unpleasant adverse effects, only pure stamina and massive muscle mass packs in the shortest time you could picture. D-bal Max appropriates for being taken by women and gents alike, during bulking cycles just as high as during cutting cycles, making the same extraordinary outcomes possible for exercise enthusiasts of either sex.