One of the few variables that could spoil the oil prices, which many see destined to climb higher, is the pitfalls facing global demand. Global synchronized growth already came to an end earlier this year, although the U.S. is still going strong. However, it remains to be seen how long that can last, with the juice from the tax cuts set to wear off, tariffs raising consumer prices, a rise in retail gasoline prices and interest rates grinding higher. But, the real danger to global oil demand is higher oil prices themselves, which to be sure, isn’t…