Studies suggest Biden's colorblind approach may fail to reduce racial disparities in pollution

Researchers find excluding race from federal climate justice screening tool could worsen exposure disparities along racial lines.
Analysis states program won't effectively shrink racial gap in air pollution without focus on race.
Tool relies on income, unemployment, and pollution data but omits race, which report says is key factor.
Despite sending aid to disadvantaged areas, racial disparities in PM2.5 exposure projected to remain.
Activists criticize lack of focus on race, arguing racist policies like redlining drive disparities.