In 2023, carbon emissions from the cement industry came in at 1.57 billion tons of carbon dioxide, which was around 8 percent of global emissions. Cement is a crucial material the world over, but the process of making it is really carbon-intensive, and zeroing in on ways to produce viable cement with less disastrous emissions has been a persistent question. The Department of Energy awarded $1.5 billion in grants last year to 6 projects that are attempting to solve that issue, but the status of those grants is obviously in question given the recently, yet inconsistently imposed, austerity measures.
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