While Texas vehicle owners are no longer required to have a yearly inspection, some Texas counties still require emissions testing, and one more is joining the list.
Colorado's air pollution permit backlog continues to grow despite big investment in engineers and software to clear the air.
Biochar as a material is not novel. It has been produced by humans for more than 2,000 years. But churning out the material ...
Two Northwest Indiana state senators are determined to continue pursuing their years-long — but so far unsuccessful — efforts to eliminate the vehicle emissions testing mandate for residents of Lake ...
Advocates say HB26-1001 will make it easier to build affordable housing; critics warn it takes away local control ...