~The following is a conversation with Bing, not ChatGPT.~is it true that there was a drop in global temperature between 1945 and 1968?
According to the web sources I found, there was a slight decrease in global temperature between 1945 and 1968, but the main reason behind this cooling was not natural but human-made. It was caused by the cooling effects of aerosols or tiny particles that reflect sunlight back to space12. These aerosols were emitted by the burning of fossil fuels and other industrial activities. They also affected the formation and properties of clouds, which also influence the climate12.
However, this cooling period was not very significant or long-lasting, as it was outweighed by the warming effects of greenhouse gases, such as carbon dioxide, that trap heat in the atmosphere12. Some scientists in the 1970s were concerned about the possibility of future cooling due to aerosols, but most papers predicted future warming due to greenhouse gases1. The World Meteorological Organization also warned in 1976 that a "very significant warming of global climate" was probable1.
Some other factors that may have contributed to the mid-century cooling are orbital forcing or changes in the Earth’s position relative to the Sun1, and data artifacts or errors in the measurement of sea surface temperatures due to different methods used by different ships3.