AMES, Iowa - It looks like Iowa farmers will have to adapt in order to avoid crop failures resulting from climate change in coming years, according to a new report compiled by local, regional and federal scientists and climatologists.
Professor Gene Takle directs the Climate Science Initiative, part of Iowa State University's Agronomy Department. He says the "Corn and Climate Report" raises some perplexing issues. Although summers have actually been on the cool side in recent years, with a period of especially favorable weather in the Midwest right now, farmers should be cautious about getting too comfortable.
Tackle says, looking out 50 to 75 years, a warming climate could negatively impact crop development. He adds, however, that clean energy opportunities could help Iowa farmers protect their livelihoods while helping reduce the environmental damage from greenhouse gas emissions.
"In the long-term, the projections are that greenhouse gas, as it continues to rise, will continue to lead to warming. But it has both positive and negative factors for Midwest agriculture, because we're part of the solution, in terms of bio-renewable energy and wind power. So, there are some very positive things as we move forward, for agriculture."
Some critics maintain that climate warming is unproven, or that it cannot be attributed to human activity. Takle says it will take greater understanding of its long-term and short-term effects to provide better seasonal and multi-year projections for farmers. One area being studied is a positive impact on crops where there are high numbers of wind turbines, he says.
"I've been talking with our soybean specialists and corn specialists and, when I mention the kinds of things I see from climate perspective - in terms of the drying out the crops a little earlier in the morning and reducing the heat during the course of the day - they say, 'Hey, this sounds good.' So, it seems that turbines might be actually good for our crops, which would be a win-win situation."
Another finding in the report is an increased risk of atmospheric moisture from climate warming that could create 'gully-washers,' heavy downpours that lead to soil erosion and crop losses. The report concludes that, while a warmer climate may seem pleasant to those not involved in agriculture, the pests and weeds that typically thrive in the southern hardiness zones may begin migrating north. Here in the Corn Belt, where we depend on cold temperatures to kill them off, a warmer future could mean new threats to crops.
The Corn and Climate Report was compiled by the National Oceanic and Atmospheric Administration (NOAA), Iowa State University, the Great Plains Institute and the U.S. Climate Change Science Program. Download it at www.gpisd.net.
get more stories like this via email
School buses are getting cleaner in Washington state after this year's legislative session.
Lawmakers in Olympia passed House Bill 1368, which will fund the purchase of zero emission school buses.
Rep. Tana Senn, D-Mercer Island, said the program is getting off the ground quickly.
"As we work towards that long-term goal of all new school buses being zero emission, we're kick-starting this year with $40 million in grants to school districts in overburdened communities," Senn explained.
Going forward, Senn noted school districts will have to purchase zero-emission vehicles once the total cost of ownership is equal to or lower than the cost of diesel vehicles. The state is leveraging the state's Climate Commitment Act resources to fund the transition of its 10,000 school buses.
Devin Denney, director of transportation for Highline Public Schools in King County, which already has electric school buses in its fleet, said he has driven the electric buses and talked about some of their benefits from a driver's perspective.
"You're not competing against that engine noise, the kids aren't competing against the engine noise," Denney observed. "It's a much quieter bus all the way around. The major advantage, of course, is that there's no tailpipe emissions with an electric bus, so our kids' health is better protected."
Senn emphasized health studies have shown there are negative health effects from diesel vehicles for kids, and it is easy to understand why.
"If you think about kids waiting to get on their bus in front of an elementary school and you have this line of buses idling, letting out diesel fumes right at the height of a little child, it becomes obvious that this is probably not the most healthy thing for our children," Senn added.
get more stories like this via email
Today, in honor of Earth Day, climate advocates are asking California lawmakers and Gov. Gavin Newsom to rally around a plan to put a $15 billion bond measure on the November ballot.
If passed, the bond measure would fund a range of climate resiliency measures.
Sam Hodder, president and CEO of the Save the Redwoods League, said March was the tenth month in a row to break monthly heat records.
"I think Earth Day is a terrific opportunity for the broader public to recognize how nature is critical for resilience, for our quality of life, for our mental and physical health, and for our communities more broadly," Hodder outlined.
Two similar bills to put a bond measure on the ballot are under consideration in Sacramento, Assembly Bill 1567 and Senate Bill 867, but they have been stalled since last summer. The bond would finance many programs, including some to restore wetlands that guard against sea-level rise, and to remove dead wood in forests to guard against mega-fires, which Hodder noted have killed 20% of the giant sequoias in recent years.
Opponents pointed out the state already faces a budget deficit and cannot afford to take on more debt. But only 5% of California's old-growth coastal redwoods remain, mostly due to aggressive logging many decades ago.
Hodder argued the giant trees can be critical ingredients in the fight against climate change because they trap so much carbon.
"Redwood forests sequester more carbon per acre than any other forest system in the world," Hodder emphasized. "We have the opportunity to transition the redwood forest from something that is vulnerable to climate change to something that is helping to solve and address the climate crisis."
Experts blame climate change for California's wild weather over the past few years, which has been marked by extreme drought, devastating fires and flooding rain.
Disclosure: The Save the Redwoods League contributes to our fund for reporting on Climate Change/Air Quality, Endangered Species & Wildlife, Environment, and Public Lands/Wilderness. If you would like to help support news in the public interest,
click here.
get more stories like this via email
A new report from the National Wildlife Federation warns that the effects of climate change in the Quad Cities, along the Iowa-Illinois border, will be severe.
But researchers got the public involved in studying to find ways to head off some of the most pressing concerns.
The report says climate change means a warmer, wetter future for the Quad Cities, which straddle the Mississippi River in Iowa and Illinois.
But rather than repeat what experts have already been saying about drastic flooding along the Big Muddy, Prairie Rivers Network River Health and Resiliency Organizer Nina Struss said researchers and Quad Cities residents brainstormed solutions to tackle the effects of climate change.
"Flooding and flash flooding were the top concerns," said Struss. "Extreme heat was also a big concern, as well as drought and other extreme weather events."
Researchers combined that information with hard science at the University of Illinois to create 3D models depicting what climate-induced flooding along the Mississippi could look like in the future.
The survey also asked people to identify which geographical areas and populations are most at risk from the effects of climate change, and worked with the community on solutions to mitigate some of them.
Struss said this research proposes what are known as nature-based solutions to combat the effects of climate change - restoring, preserving and even expanding existing ecosystems, like wetlands and tree canopies. But creating more eco-friendly infrastructure, too.
"Can we work to maybe have our pavements that we're putting in be more permeable, so that they can absorb that water and have that higher water-holding capacity?" said Struss. "Can we focus on areas to plant more native plants that have stronger root systems, versus ones that have shorter root systems, to help with that water-holding capacity?"
Struss said this research isn't a one-off. It will continue to change, she said, as the climate changes, the needs become more clear, and the effects more drastic.
She said progress in addressing climate change relies on more research, education and funding.
get more stories like this via email