Environment

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Brad Thompson, owner of Bridgman Oil, left, assists Colwich firefighter Mike Rau, right, in filling a fire truck with gasoline at the Hutchinson Fire Department command center on Tuesday, March 7, 2017, in Hutchinson, Kan. Emergency crews on Tuesday struggled to contain deadly wildfires that have scorched hundreds of square miles of land in four states and forced thousands of people to flee their homes ahead of the wind-whipped flames. (Katy Kildee/The Hutchinson News via AP)

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Vic Trass writes his name and phone number on a sign-in sheet on Monday, March 6, 2017, as he arrives at an evacuation center in Hutchinson, Kans., as a grassfire continues to rage north of Hutchinson. Emergency crews on Tuesday struggled to contain deadly wildfires that have scorched hundreds of square miles of land in four states and forced thousands of people to flee their homes ahead of the wind-whipped flames. (Katy Kildee/The Hutchinson News via AP)

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Australia is experimenting with female traffic signals to combat "unconscious bias." (Twitter, ABC News Melbourne)

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In this Thursday Feb. 23, 2017 photo, a goose floats at Indian Lake Park in North Huntingdon, Pa. The resident Canada geese that congregate in local parks might be pretty to look at, but the droppings they leave have officials struggling to eliminate the birds and their mess. (Steph Chambers/Pittsburgh Tribune-Review via AP)

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In this Thursday Feb. 23, 2017 photo, a goose floats at Indian Lake Park in North Huntingdon, Pa. The resident Canada geese that congregate in local parks might be pretty to look at, but the droppings they leave have officials struggling to eliminate the birds and their mess. (Steph Chambers/Pittsburgh Tribune-Review via AP)

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In this Thursday, March 2, 2017 photo, a goose walks along the shore of Indian Park Lake in North Huntingdon Township, Pa. The resident Canada geese that congregate in local parks might be pretty to look at, but the droppings they leave have officials struggling to eliminate the birds and their mess. (Christian Tyler Randolph/Pittsburgh Tribune-Review via AP)

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Travis Pohlman checks for hot spots in the trees along Dull Knife Drive in the Highlands community area north of Hutchinson, Kan., on Monday, March 6, 2017. Grass fires fanned by gusting winds scorched swaths of Kansas grassland Monday, forcing the evacuations of several towns and the closure of some roads, including a couple of short stretches of Interstate 70. (Lindsey Bauman/The Hutchinson News via AP)

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A cow grazes by a wildfire near Protection, Kan., early Tuesday, March 7, 2017. Grass fires fanned by gusting winds scorched swaths of Kansas grassland Monday, forcing the evacuations of several towns and the closure of some roads. (Bo Rader/The Wichita Eagle via AP)

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Wildfires swept by high winds burn near Protection, Kan., early Tuesday, March 7, 2017. The Wichita Eagle reported that Protection, a resident community in Comanche County, was evacuated Monday evening. (Bo Rader/The Wichita Eagle via AP)

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Cattle graze by a wildfire near Protection, Kan., early Tuesday, March 7, 2017. Grass fires fanned by gusting winds scorched swaths of Kansas grassland Monday, forcing the evacuations of several towns and the closure of some roads. (Bo Rader/The Wichita Eagle via AP)

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A National Guard helicopter picks up water from the Gravel & Concrete Inc. sandpit on Monday, March 6, 2017, in Nickerson, Kan. The helicopters were conducting water airdrops on hotspots and smoldering tree rows Monday in the Highlands subdivision north of Hutchinson. (Lindsey Bauman/The Hutchinson News via AP)

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A National Guard helicopter drops water on trees on the west side of the Highlands in Hutchinson, Kan., Monday, March 6, 2017. Grass fires fanned by gusting winds scorched swaths of Kansas grassland Monday, forcing the evacuations of two towns and the closure of some roads. (Lindsey Bauman/The Hutchinson News via AP)

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A tree burns as firefighters from across Kansas and Oklahoma battle a wildfire near Protection, Kan., Monday, March 6, 2017. (Bo Rader/The Wichita Eagle via AP)