Organisers of the IAAF World U20 Championships at Tampere Stadium have integrated sustainability into their plans in some innovative ways, including encouraging athletes to drink tap water rather than drink from single-use plastic bottles.
All athletes attending the event are given one reusable water bottle labelled "drink tap water." At various points around the event there are signs reminding participants to re-fill bottles with tap water at the numerous filling stations.
"It's important to teach young athletes that athletics is about more than just sports," according to IAAF President Sebastian Coe. "Athletes have the opportunity to affect important issues such as sustainability and environmental issues."
For many of the athletes attending the event, the idea is totally novel.
"I didn't know tap water is drinkable. I've never drunk it before," says American long jumper Tara Davis.
Bahama team athletes were also taken by the experience.
"I've never drunk tap water, this is quite funny, but so easy," said one of the Bahama team athletes while filling her reusable drinking bottle.
The greatest surprise for many was how water that comes from a tap can taste so good, like spring water.
Meanwhile, HSY (Helsinki Region Environmental Services Authority), jumped on the opportunity to promote the city's clean water to the international visitors coming to Helsinki to attend the Trump-Putin summit.
"Welcome to Helsinki Mr Trump and Mr Putin!" tweeted HSY. "Finnish tap water, it won't run out even if negotiations last. Representatives of the media can collect their bottles for tap water from Finlandia Hall."