The Intertropical Convergence Zone, or ITCZ, is the region that circles the Earth, near the equator, where the trade winds of the Northern and Southern Hemispheres come together. The intense sun and warm water of the equator heats the air in the ITCZ, raising its humidity and making it buoyant.
MOST POPULAR. Congressional Republicans will return to Capitol Hill next week with Obamacare in their crosshairs. Theyâll take aim at a provision in the law that defines âfull- time employeesâ as those working 30 hours or more.
Now, business groups and unions are urging Congress to change the rule to define full time as 40 hours, but they face long odds given both partiesâ reluctance to tinker with the law. Maryland and the District offer health insurance to workers who log 20 or more hours a week.