Press [Start] to start the game. The controls for walking are [right] and [left] arrow and to jump, press [up arrow]. When you reach the end, click the booklet to look over facts and how you can help prevent Global Warming. To flip through the pages, press [a], [b], and [c]. To exit out of the booklet, press [d].
Credit to everyone, including @DinoAndHamiltonLover. Winter Omens: Longer than Colorless Effects Of Global Warming: Shorter than Kittyking And both are pretty similar...