At the World Expo in Lisbon in 1998, Bigert & Bergström were commissioned to create the main exhibition for the Swedish pavilion. The installation “Climate Chambers II” was an expanded development of their previous project from 1994 with the same title. A series of connected sculptural chambers with the common form of an egg housed four different climates. The egg shaped chambers toying with the question of how ideas occur, and how ideas are affected by the climate in which they've been hatched. 
First the visitors entered the Wet Chamber, a rusty egg with the interior walls made of wet sponge. When standing in the middle on a glass floor, surrounded by a high voltage isolation railing, this chamber evokes an image of the powers released by nature during early springtime.

On entering the Heat Chamber the visitors met a compact cloud of hot steam evaporating from a boiling geyser in the bottom of the chamber. The outer shape of the egg and the material used, aluminum and acrylic, made this egg look like a topographic greenhouse.

In the following egg, a yellow transparent “bellows”, the visitors have to pass through the eye of the storm. Four huge fans created a turbulent autumn storm inside, somewhere between destruction and relief.

At the end of the trail of automatic doors and airlocks, a white shining polyester egg opens up for winter. With knitted interior walls, a spinning neon light fan and a perforated aluminum floor, the rooms temperature of -20°C came as no surprise.