The solution for that problem are carbon tariffs. As in every product imported has to pay X money for every ton of carbon they emitted producing the product.
Also obviously China has to go to zero. Everybody has to and that is why pretty much everybody has signed the Paris Climate Agreement promising to go to zero.
That photo shows two partly submerged Russian submarines in a port, so no waves. Those submarines are 73m long, so longer then a normal whale and the part above the water is also larger then your normal whale. In other words there is no way to spot a whale in the open ocean with satellites.