Well, suppose that everyone went to lighter weight building materials or lighter weight construction methods. That would reduce carbon dioxide in the world.
So consider using lighter weight construction.
In fact most high-rise buildings are now dead-weight concrete instead of the previous lightweight steel frame.
But I build a house with 304L joist holders set directly in concrete footings. Then the joist-holder might as well also hold the stud such that both the stud and the floor-joist-end are bolted to the joist-holder. If the ceiling-joist or roof truss is to be bolted then, strangely enough, two studs are needed at each stud location so that the ceiling-joist can sit on one stud and bolt to the side of the other stud. Finish the frame section with a bolted blocking, using brackets, near the ceiling-joist.
Oh, a "joist holder" is a 2" square or round 304L tube with a 0.120" wall thickness. But a 304L flat plate is welded to the bottom of the tube and a 304L L-angle is welded to the top of the tube. A floor-joist-end sits on the L-angle and bolts to the side of it. For taller tubes out of the concrete footings just increase tube diameter. Make 304L joist-holders with a truck-load of wholesale 304L, a metal-cutting bandsaw, and an arc-welder.
Or, use a 304L joist-holder as a 4 1/2" diameter tube with a 0.120" wall thickness and then set every 7' to 8' apart. Run double joist-size lumber between the 304L tubes to make a beam for floor-joists to set cross-ways on. Bolt the floor-joists to the beam ? That requires two 90-degree brackets.
Now any bolt, nut, or washer that touches a 304L joist-holder should be 18-8. Otherwise lumber can be bolted together with galvanized bolts.