6:14 p.m. ET: UPDATE: So even though the RNC lasted just a few seconds, the day had its moments.
Protesters associated with the Occupy movement blocked traffic outside the Tampa, Fla., arena where the Republican National Convention kicked off today, leading to one arrest and police pursuit of several others who were "running through the downtown area," the chief of police said.
5:03 p.m. ET: Arctic sea ice is melting faster than climate models projected, already shrinking to a record minimum with several more weeks of this year's melting season, according to scientists on both sides of the Atlantic.
ABC's Linsey Davis recently traveled to the high Arctic to track narwhals and encountered first hand the dangers of cracking Arctic sea ice. Watch what happened here:
4:25 p.m. ET: What was to be an opening day of pomp and partying stretching into the night at the Republican National Convention instead lasted all of one minute, as the GOP put on hold its plans to nominate Mitt Romney while the Gulf Coast hunkers down in preparation for Tropical Storm Isaac.
At 2 p.m. ET, party chairman Reince Priebus announced the convention "in session and called to order." He declared the convention in recess moments later with the pounding of a gavel.
1:51 p.m. ET: ABC News meteorologist Ginger Zee tweets from New Orleans ahead of Tropical Storm Isaac:
12:24 p.m. ET: Snakes on a plane DENIED
A Brazilian man was arrested for trying to board a flight at Orlando International Airport while carrying 27 snakes that he'd wrapped in pantyhose and stashed away in inside stereo speakers, authorities said.
11:46 a.m. ET: BREAKING: A student was shot on the first day of school today in a Baltimore suburb and the school was evacuated.
10:25 a.m. ET: DEVELOPING: Louisiana Gov. Bobby Jindal declared a state of emergency ahead of Tropical Storm Isaac, which grazed the Florida Keys overnight and is churning into the Gulf of Mexico today. The storm is expected to make landfall in New Orleans late Tuesday night.
9:03 a.m. ET: Happy Republican National Convention!
Although Tropical Storm Isaac has put a damper on today's festivities, but here's a sneak peek of what's to come from Paul Ryan, reports ABC News' Shushannah Walshe:
Today, the vice presidential candidate will return home to his high school, the Joseph A. Craig High School in Janesville, Wisconsin and will give a "small preview of his message about a better future for America," according to the aide. It will also surely tell the story of a local boy done good with a backdrop of an adoring hometown crowd.