It’s not your imagination: Allergy season gets worse every year – Pollen allergy seasons continue to get longer and more intense as temperatures rise

By Umair Irfan 21 May 2019 (Vox) – The weather is warming. The flowers are blooming. Noses are running. Eyes are watering. It’s allergy season, and this year it’s been severe in states like Georgia, and cities like Chicago, where the frigid winter delayed the onset. Now that it’s late May, we’re moving away from peak tree […]

U.S. shallow groundwater wetness percentile from 11 May 2019 to 13 May 2019. Graphic: NASA Earth Observatory

Wettest 12 months in U.S. history, again – “The last twelve months beat the previous record, set just a month ago, by a full 1.48 inches”

By Bob Henson 6 June 2019 (Weather Underground) – Propelled by a two-week siege of widespread severe weather and heavy rain in late May, the contiguous U.S. has once again broken its record for the wettest year-long span in data going back to 1895. According to the monthly U.S. climate summary released Thursday from the […]

Abnormal high temperatures in Alaska disrupt isolated communities, upset subsistence hunting patterns, and cause deaths – “It’s hard to characterize this anomaly, it’s just pretty darn remarkable for that part of the world”

By Tim Lydon 29 May 2019 (Hakai Magazine) – Alaska in March is supposed to be cold. Along the north and west coasts, the ocean should be frozen farther than the eye can see. In the state’s interior, rivers should be locked in ice so thick that they double as roads for snowmobiles and trucks. […]

Aerial view of flooded homes in Arkansas, 2 June 2019. Photo: Brian Emfinger / Twitter

“Horrible scenes” in central, southern U.S. as more rain threatens areas swamped by record floods – “You have to just make a decision because you’re going to lose everything”

By Doyle Rice 4 June 2019 (USA TODAY) – More unwelcome rain is forecast this week in much of the central and southern USA, falling upon areas already swamped by record-breaking floods. “Many locations from the central and southern Plains into the Mississippi Valley and Ohio Valley could see 1 to 3 inches of rain in the […]

Carbon dioxide levels in atmosphere hit record high in May 2019

4 June 2019 (NOAA) – Atmospheric carbon dioxide continued its rapid rise in 2019, with the average for May peaking at 414.7 parts per million (ppm) at NOAA’s Mauna Loa Atmospheric Baseline Observatory. The measurement is the highest seasonal peak recorded in 61 years of observations on top of Hawaii’s largest volcano and the seventh consecutive […]

Student mows green message for Trump visit to UK: “Climate change is real”

3 June 2019 (BBC News) – A student has attempted to catch the eye of Donald Trump by mowing an environmental message into grass under the flight path of Air Force One. Ollie Nancarrow, 18, cut an image of a giant penis, a polar bear and a climate change message on his family’s land close […]

A farm field is flooded by waters from the Missouri River, in Bellevue, Nebraska, on 29 May 2019. Photo: Nati Harnik / AP

Flooded farms in the U.S. Midwest can’t plant crops – Corn and soybean acres not planted at record high – “The frequency of these disasters, I can’t say we’ve experienced anything like this since I’ve been working in agriculture”

By Michael J. Coren 30 May 2019 (Quartz) – The angst on farmer Twitter is palpable. Across the Midwest, torrential rains have soaked the fields, leaving the sodden soil unsuitable for planting millions of acres with corn, soybeans, and other crops, presaging a terrible harvest. Seeds are usually in the ground this time of year. […]

Global average abundance of atmospheric carbon dioxide in 2018. Graphic: NOAA

Graph of the Day: NOAA Annual Greenhouse Gas Index, 1700-2018

30 May 2019 (Desdemona Despair) – Last week, the NOAA Earth System Research Laboratory posted its annual update to the NOAA Annual Greenhouse Gas Index (AGGI), which measures the climate-warming influence of long-lived trace gases, including carbon dioxide and methane. To nobody’s surprise, the AGGI continued its inexorable rise in 2018 because, for another year, […]

Historic flooding on the Arkansas River in Oklahoma and Arkansas – “This is the culmination of a flood that is now in its fourth week”

By Dr. Jeff Masters 28 May 2019 (Weather Underground) – Torrential rains in Oklahoma over the past two weeks have brought the Arkansas River in western Arkansas and eastern Oklahoma to its highest water level ever recorded. Near the Oklahoma border at Fort Smith, Arkansas (population 300,000), the river rose to two feet above its previous […]

Zonally averaged methane (CH4) growth rate versus sine‐of‐latitude (equal area) and time for 2005–2018. Graphic: Nisbet, et al., 2019 / Global Biogeochemical Cycles

The methane detectives: On the trail of a global warming mystery – “The bottom line is that methane is going up and doesn’t look like it will stop anytime soon”

By Jonathan Mingle 13 May 2019 (Undark) – Every week, dozens of metal flasks arrive at NOAA’s Earth System Research Laboratory in Boulder, Colorado, each one loaded with air from a distant corner of the world. Research chemist Ed Dlugokencky and his colleagues in the Global Monitoring Division catalog the canisters, and then use a series of […]

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