"These samples indicated that 30 years ago this trend of inshore waters being more acidic than offshore did not occur," Uthicke said.
Clean-energy technology, he noted, has advanced "much, much faster than even the most optimistic people were projecting four to five years ago," a trend that the Trump Administration is unlikely to curtail.
Then, about 20 years ago, the trend reversed - and all the broad measures of key crimes have been falling ever since.
One aspect, the traditional Penny for the Guy seems to have largely fallen out of favour a while ago, a trend bemoaned by traditionalists.
Lloyd said that several years ago the trend among property owners was more restrictive toward pets, but that's changed.
It's hard to make predictions about which way the online sex industry will go – five years ago, the trend was to make the kind of hyper-extreme videos that inspired Cameron's porn ban; now, it's to produce clips that look like they were filmed in a back garden on a VHS recorder.
One reason may relate to use of the pack as a marketing tool (especially in places where there are restrictions on traditional or direct advertising, promotion and sponsorship) – for example, the globalization of "Slim" brands based on Virginia Slims, developed more than four decades ago – a trend which is now increasingly visible in many emerging markets.
Soon the name Noosha Fox – not one that's been much on the public's lips since her last hit, 34 years ago – started trending.
Even if Washington's red ink were back to the levels of a couple of years ago, these trends would be disturbing.
Since its inception more than 20 years ago, Forest Trends has been focused on recognizing the economic value of our natural ecosystems--and upending the way people think about the value of a forest.
Twenty years ago, the latest trend in American restaurants was California cuisine.
