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.
One of the first things scientists learned is that there are several greenhouse gases responsible for warming, and humans emit them in a variety of ways. Most come from the combustion of fossil fuels in cars, factories and electricity production.cientists have spent decades figuring out what is causing global warming. They've looked at the natural cycles and events that are known to influence climate. But the amount and pattern of warming that's been measured can't be explained by these factors alone.