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ScienceDaily: Earth & Climate News |
| Big differences found in male and female jojoba plant sex genes Posted: 14 Oct 2021 11:20 AM PDT Hot desert sex has resulted in major genetic differences between male and female jojoba plants -- one of only 6 percent of plants that require a male and female plant to reproduce. New research suggests male and female jojoba plants have diverged so much, that the jojoba plant has more novel sex genes than any other known living organism. The discovery may help researchers develop a DNA test to identify male and female jojoba plants, which cannot be distinguished from each other as seedlings - and shed light on how plants adapt to environmental stress. |
| By 2500 Earth could be alien to humans Posted: 14 Oct 2021 10:12 AM PDT To fully grasp and plan for climate impacts under any scenario, researchers and policymakers must look well beyond the 2100 benchmark. Unless CO2 emissions drop significantly, global warming by 2500 will make the Amazon barren, the American Midwest tropical, and India too hot to live in, according to a team of international scientists. |
| Scientists discover large rift in the Arctic’s last bastion of thick sea ice Posted: 14 Oct 2021 10:11 AM PDT In May 2020, a hole a little smaller than the state of Rhode Island opened up for two weeks in the Last Ice Area, a million-square-kilometer patch of sea ice north of Greenland and Ellesmere Island that's expected to be the last refuge of ice in a rapidly warming Arctic. The polynya is the first one that has been identified in this part of the Last Ice Area. |
| Lone changer: Fish camouflage better without friends nearby Posted: 14 Oct 2021 07:20 AM PDT While gobies aren't the only fish with camouflage abilities, new research shows that their colour change is influenced by their social context: they transform faster and better when alone. This is likely an adaptive, stress response to perceived threat from predators - with possible application to other camouflaging species. |
| Pesticide linked to chronic kidney disease Posted: 14 Oct 2021 07:01 AM PDT A commonly available pesticide has been associated with an increased risk of chronic kidney disease (CKD). |
| Desert locusts remain a serious threat to Pakistan Posted: 12 Oct 2021 06:50 AM PDT The recent Desert Locust upsurge had a major impact on Pakistan's agriculture, with swarms causing immense damage to all types of crops. A team provides an overview of the dynamics of this upsurge, assesses its impact and control measures, and clarifies the role of different stakeholders in the management of this pest, suggesting various improvements for the future. |
| New proteins enable scientists to control cell activities Posted: 12 Oct 2021 06:50 AM PDT Scientists have developed new controlled proteins and used to switch cellular activities on and off like a light bulb. |
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