Climate scientists have long said that climate change should bring an increase in extreme events like dry spells and heat waves. Because warmth causes more evaporation and warmer air holds more moisture, climate change should also lead to more intense and frequent storms.

Studies have shown that these effects are occurring on a broad scale. But the natural variability of weather makes looking at individual events more difficult.

World Weather Attribution, which is coordinated by Climate Central, a research organization in Princeton, N.J., is one of a number of groups doing rapid analysis. Among other events, they have looked at flooding in Germany and France last May; high temperatures in the Arctic in November and December; and an usually strong storm that hit northern Britain in 2015.

Not all attribution studies have found a climate-change link. In general, studies of heat waves tend to produce the clearest signal of the influence, or not, of global warming.

Australian heat waves have been examined in the past, most recently in several studies that showed a clear link between climate change and a period of torrid weather in 2013. David Karoly, a scientist at the University of Melbourne, was involved in one of the studies, which took more than six months to produce.

“That was considered very rapid at the time,” Dr. Karoly said.

As a member of World Weather Attribution, Dr. Karoly helped with the study of the recent heat waves, which took about two weeks.