If playing on a laptop it's recommend to use an external mouse, especially during the tsunami section, or use the touchscreen if you have one - saving whales gets a bit frenetic as you progress through the game. It's also cheaper to replace a mouse than a trackpad!
I made this game using a desktop PC with a mouse and didn't check how it plays using a touchpad until showing it to my GF on a laptop. Apologies for that!