This is the idea that the number of these particles we should be detecting changes as the seasons change.

BBC: Dark Matter: Experiment to shed light on dark particles

Was this fluctuation real, or was it merely a glitch in the equipment used to measure the decay, induced by the change of seasons, with the accompanying changes in temperature and humidity?

FORBES: Radioactive Decay Rates May Not Be Constant After All

While the octane specification of a particular grade is constant throughout the year, the RVP specification changes with the seasons. (See Refining 101: Winter Gasoline for a more detailed explanation of gasoline blends).

FORBES: Why Spring Means Higher Gasoline Prices

They are a temperate-climate crop, sensitive to temperature changes and requiring four distinct seasons.

ECONOMIST: Brazilian agriculture

The imminent arrival of the new Four Seasons may have something to do with changes at the Ciragan.

FORBES: Magazine Article

We need seeds and crops that can better withstand drought, combat new pests and weeds, and perhaps adjust to changes in climate and growing seasons.

FORBES: Magazine Article

"We want to capture the changes day-by-day throughout the seasons, " said geographer Mark Schwartz at the University of Wisconsin-Milwaukee, who monitors lilacs at a thousand U.S. locations.

WSJ: A Science of Signs of Spring

But he ruled out making sweeping changes to a club that has finished in the top half of the Premiership the last two seasons.

BBC: Investor confirms Blackburn talks