Through the first Sunday of this season, there were 79 nine-inning games, compared with 85 at the same stage last year. The average length of those games this year has been 2 hours, 54 minutes, 39 seconds. A year ago, the average was 3 hours, 2 minutes and 25 seconds.
Carbon dioxide is the main cause of human-induced climate change. It has been emitted in vast quantities from the burning of fossil fuels and it is a very long-lived gas, which means it continues to affect the climate system during its long residence time in the atmosphere.
Other human activities include agriculture and changes in land-use patterns. They all work to tip the Earthâs energy balance by trapping more heat. Even scientists who think human activity is the main cause of climate change don't deny that natural changes will cause temperature fluctuations on Earth. However, their argument is that in the current cycle of climate change, the impact caused by man is far greater.