Dive Brief:

• The new Minnesota Vikings stadium in downtown Minneapolis will feature 200,000 square feet of clear glass, despite protests from the Audubon Society.

• The nonprofit environmental organization has warned that the glass walls could kill thousands of birds, which will see the reflection of trees and grass and fly right into them. The stadium is located near a Mississippi flyway for migrating birds.

• Called to testify before a state legislative oversight committee about the progress of the stadium’s construction, officials from the team and the Minnesota Sports Facilities Authority said they will minimize the collisions by turning off stadium lighting during migration seasons and changing the direction of the stadium’s lighting to make the glass appear less like nature.

Dive Insight:

The new stadium will feature the largest transparent roof in the NFL, made from ethylene-tetraflouroethylene. Five, 95-foot-high pivoting glass doors will open to a three-acre plaza.